Class TDoubleArrayList
- All Implemented Interfaces:
TDoubleList
,TDoubleCollection
,Externalizable
,Serializable
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected double[]
the data of the listprotected int
the index after the last entry in the listprotected static final int
the default capacity for new listsprotected double
the double value that represents null -
Constructor Summary
ConstructorsModifierConstructorDescriptionCreates a newTDoubleArrayList
instance with the default capacity.TDoubleArrayList
(double[] values) Creates a newTDoubleArrayList
instance whose capacity is the length of values array and whose initial contents are the specified values.protected
TDoubleArrayList
(double[] values, double no_entry_value, boolean wrap) TDoubleArrayList
(int capacity) Creates a newTDoubleArrayList
instance with the specified capacity.TDoubleArrayList
(int capacity, double no_entry_value) Creates a newTDoubleArrayList
instance with the specified capacity.TDoubleArrayList
(TDoubleCollection collection) Creates a newTDoubleArrayList
instance that contains a copy of the collection passed to us. -
Method Summary
Modifier and TypeMethodDescriptionboolean
add
(double val) Adds val to the end of the list, growing as needed.void
add
(double[] vals) Adds the values in the array vals to the end of the list, in order.void
add
(double[] vals, int offset, int length) Adds a subset of the values in the array vals to the end of the list, in order.boolean
addAll
(double[] array) Adds all of the elements in the array to the collection.boolean
addAll
(TDoubleCollection collection) Adds all of the elements in the TDoubleCollection to the collection.boolean
addAll
(Collection<? extends Double> collection) Adds all of the elements in collection to the collection.int
binarySearch
(double value) Performs a binary search for value in the entire list.int
binarySearch
(double value, int fromIndex, int toIndex) Performs a binary search for value in the specified range.void
clear()
Flushes the internal state of the list, resetting the capacity to the default.void
Sets the size of the list to 0, but does not change its capacity.boolean
contains
(double value) Searches the list for valueboolean
containsAll
(double[] array) Tests the collection to determine if all of the elements in array are present.boolean
containsAll
(TDoubleCollection collection) Tests the collection to determine if all of the elements in TDoubleCollection are present.boolean
containsAll
(Collection<?> collection) Tests the collection to determine if all of the elements in collection are present.void
ensureCapacity
(int capacity) Grow the internal array as needed to accommodate the specified number of elements.boolean
Compares the specified object with this collection for equality.void
fill
(double val) Fills every slot in the list with the specified value.void
fill
(int fromIndex, int toIndex, double val) Fills a range in the list with the specified value.boolean
forEach
(TDoubleProcedure procedure) Applies the procedure to each value in the list in ascending (front to back) order.boolean
forEachDescending
(TDoubleProcedure procedure) Applies the procedure to each value in the list in descending (back to front) order.double
get
(int offset) Returns the value at the specified offset.double
Returns the value that is used to represent null.double
getQuick
(int offset) Returns the value at the specified offset without doing any bounds checking.grep
(TDoubleProcedure condition) Searches the list for values satisfying condition in the manner of the *nix grep utility.int
hashCode()
Returns the hash code value for this collection.int
indexOf
(double value) Searches the list front to back for the index of value.int
indexOf
(int offset, double value) Searches the list front to back for the index of value, starting at offset.void
insert
(int offset, double value) Inserts value into the list at offset.void
insert
(int offset, double[] values) Inserts the array of values into the list at offset.void
insert
(int offset, double[] values, int valOffset, int len) Inserts a slice of the array of values into the list at offset.inverseGrep
(TDoubleProcedure condition) Searches the list for values which do not satisfy condition.boolean
isEmpty()
Tests whether this list contains any values.iterator()
Creates an iterator over the values of the collection.int
lastIndexOf
(double value) Searches the list back to front for the last index of value.int
lastIndexOf
(int offset, double value) Searches the list back to front for the last index of value, starting at offset.double
max()
Finds the maximum value in the list.double
min()
Finds the minimum value in the list.void
boolean
remove
(double value) Removes value from the list.void
remove
(int offset, int length) Removes length values from the list, starting at offsetboolean
removeAll
(double[] array) Removes all of the elements in array from the collection.boolean
removeAll
(TDoubleCollection collection) Removes all of the elements in TDoubleCollection from the collection.boolean
removeAll
(Collection<?> collection) Removes all of the elements in collection from the collection.double
removeAt
(int offset) Removes value at a given offset from the list.double
replace
(int offset, double val) Sets the value at the specified offset and returns the previously stored value.boolean
retainAll
(double[] array) Removes any values in the collection which are not contained in array.boolean
retainAll
(TDoubleCollection collection) Removes any values in the collection which are not contained in TDoubleCollection.boolean
retainAll
(Collection<?> collection) Removes any values in the collection which are not contained in collection.void
reverse()
Reverse the order of the elements in the list.void
reverse
(int from, int to) Reverse the order of the elements in the range of the list.double
set
(int offset, double val) Sets the value at the specified offset.void
set
(int offset, double[] values) Replace the values in the list starting at offset with the contents of the values array.void
set
(int offset, double[] values, int valOffset, int length) Replace the values in the list starting at offset with length values from the values array, starting at valOffset.void
setQuick
(int offset, double val) Sets the value at the specified offset without doing any bounds checking.void
Shuffle the elements of the list using the specified random number generator.int
size()
Returns the number of values in the list.void
sort()
Sort the values in the list (ascending) using the Sun quicksort implementation.void
sort
(int fromIndex, int toIndex) Sort a slice of the list (ascending) using the Sun quicksort implementation.subList
(int begin, int end) Returns a sublist of this list.double
sum()
Calculates the sum of all the values in the list.double[]
toArray()
Copies the contents of the list into a native array.double[]
toArray
(double[] dest) Copies a slice of the list into a native array.double[]
toArray
(double[] dest, int offset, int len) Copies a slice of the list into a native array.double[]
toArray
(double[] dest, int source_pos, int dest_pos, int len) Copies a slice of the list into a native array.double[]
toArray
(int offset, int len) Copies a slice of the list into a native array.toString()
void
transformValues
(TDoubleFunction function) Transform each value in the list using the specified function.void
Sheds any excess capacity above and beyond the current size of the list.static TDoubleArrayList
wrap
(double[] values) Returns a primitive List implementation that wraps around the given primitive array.static TDoubleArrayList
wrap
(double[] values, double no_entry_value) Returns a primitive List implementation that wraps around the given primitive array.void
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Field Details
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DEFAULT_CAPACITY
protected static final int DEFAULT_CAPACITYthe default capacity for new lists- See Also:
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_data
protected double[] _datathe data of the list -
_pos
protected int _posthe index after the last entry in the list -
no_entry_value
protected double no_entry_valuethe double value that represents null
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Constructor Details
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TDoubleArrayList
public TDoubleArrayList()Creates a newTDoubleArrayList
instance with the default capacity. -
TDoubleArrayList
public TDoubleArrayList(int capacity) Creates a newTDoubleArrayList
instance with the specified capacity.- Parameters:
capacity
- anint
value
-
TDoubleArrayList
public TDoubleArrayList(int capacity, double no_entry_value) Creates a newTDoubleArrayList
instance with the specified capacity.- Parameters:
capacity
- anint
valueno_entry_value
- andouble
value that represents null.
-
TDoubleArrayList
Creates a newTDoubleArrayList
instance that contains a copy of the collection passed to us.- Parameters:
collection
- the collection to copy
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TDoubleArrayList
public TDoubleArrayList(double[] values) Creates a newTDoubleArrayList
instance whose capacity is the length of values array and whose initial contents are the specified values.A defensive copy of the given values is held by the new instance.
- Parameters:
values
- andouble[]
value
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TDoubleArrayList
protected TDoubleArrayList(double[] values, double no_entry_value, boolean wrap)
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Method Details
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wrap
Returns a primitive List implementation that wraps around the given primitive array.
NOTE: mutating operation are allowed as long as the List does not grow. In that case an IllegalStateException will be thrown
- Parameters:
values
-
-
wrap
Returns a primitive List implementation that wraps around the given primitive array.
NOTE: mutating operation are allowed as long as the List does not grow. In that case an IllegalStateException will be thrown
- Parameters:
values
-no_entry_value
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getNoEntryValue
public double getNoEntryValue()Returns the value that is used to represent null. The default value is generally zero, but can be changed during construction of the collection.- Specified by:
getNoEntryValue
in interfaceTDoubleCollection
- Specified by:
getNoEntryValue
in interfaceTDoubleList
- Returns:
- the value that represents null
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ensureCapacity
public void ensureCapacity(int capacity) Grow the internal array as needed to accommodate the specified number of elements. The size of the array bytes on each resize unless capacity requires more than twice the current capacity. -
size
public int size()Returns the number of values in the list.- Specified by:
size
in interfaceTDoubleCollection
- Specified by:
size
in interfaceTDoubleList
- Returns:
- the number of values in the list.
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isEmpty
public boolean isEmpty()Tests whether this list contains any values.- Specified by:
isEmpty
in interfaceTDoubleCollection
- Specified by:
isEmpty
in interfaceTDoubleList
- Returns:
- true if the list is empty.
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trimToSize
public void trimToSize()Sheds any excess capacity above and beyond the current size of the list. -
add
public boolean add(double val) Adds val to the end of the list, growing as needed.- Specified by:
add
in interfaceTDoubleCollection
- Specified by:
add
in interfaceTDoubleList
- Parameters:
val
- andouble
value- Returns:
- true if the list was modified by the add operation
-
add
public void add(double[] vals) Adds the values in the array vals to the end of the list, in order.- Specified by:
add
in interfaceTDoubleList
- Parameters:
vals
- andouble[]
value
-
add
public void add(double[] vals, int offset, int length) Adds a subset of the values in the array vals to the end of the list, in order.- Specified by:
add
in interfaceTDoubleList
- Parameters:
vals
- andouble[]
valueoffset
- the offset at which to start copyinglength
- the number of values to copy.
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insert
public void insert(int offset, double value) Inserts value into the list at offset. All values including and to the right of offset are shifted to the right.- Specified by:
insert
in interfaceTDoubleList
- Parameters:
offset
- anint
valuevalue
- andouble
value
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insert
public void insert(int offset, double[] values) Inserts the array of values into the list at offset. All values including and to the right of offset are shifted to the right.- Specified by:
insert
in interfaceTDoubleList
- Parameters:
offset
- anint
valuevalues
- andouble[]
value
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insert
public void insert(int offset, double[] values, int valOffset, int len) Inserts a slice of the array of values into the list at offset. All values including and to the right of offset are shifted to the right.- Specified by:
insert
in interfaceTDoubleList
- Parameters:
offset
- anint
valuevalues
- andouble[]
valuevalOffset
- the offset in the values array at which to start copying.len
- the number of values to copy from the values array
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get
public double get(int offset) Returns the value at the specified offset.- Specified by:
get
in interfaceTDoubleList
- Parameters:
offset
- anint
value- Returns:
- an
double
value
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getQuick
public double getQuick(int offset) Returns the value at the specified offset without doing any bounds checking. -
set
public double set(int offset, double val) Sets the value at the specified offset.- Specified by:
set
in interfaceTDoubleList
- Parameters:
offset
- anint
valueval
- andouble
value- Returns:
- The value previously at the given index.
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replace
public double replace(int offset, double val) Sets the value at the specified offset and returns the previously stored value.- Specified by:
replace
in interfaceTDoubleList
- Parameters:
offset
- anint
valueval
- andouble
value- Returns:
- the value previously stored at offset.
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set
public void set(int offset, double[] values) Replace the values in the list starting at offset with the contents of the values array.- Specified by:
set
in interfaceTDoubleList
- Parameters:
offset
- the first offset to replacevalues
- the source of the new values
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set
public void set(int offset, double[] values, int valOffset, int length) Replace the values in the list starting at offset with length values from the values array, starting at valOffset.- Specified by:
set
in interfaceTDoubleList
- Parameters:
offset
- the first offset to replacevalues
- the source of the new valuesvalOffset
- the first value to copy from the values arraylength
- the number of values to copy
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setQuick
public void setQuick(int offset, double val) Sets the value at the specified offset without doing any bounds checking. -
clear
public void clear()Flushes the internal state of the list, resetting the capacity to the default.- Specified by:
clear
in interfaceTDoubleCollection
- Specified by:
clear
in interfaceTDoubleList
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clearQuick
public void clearQuick()Sets the size of the list to 0, but does not change its capacity. This method can be used as an alternative to theclear()
method if you want reset the list state without incurring the cost of filling bank data in the list. Thus, it is possible for getQuick to return stale data if this method is used and the caller is careless about bounds checking. -
remove
public boolean remove(double value) Removes value from the list.- Specified by:
remove
in interfaceTDoubleCollection
- Specified by:
remove
in interfaceTDoubleList
- Parameters:
value
- andouble
value- Returns:
- true if the list was modified by the remove operation.
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removeAt
public double removeAt(int offset) Removes value at a given offset from the list.- Specified by:
removeAt
in interfaceTDoubleList
- Parameters:
offset
- anint
value that represents the offset to the element to be removed- Returns:
- an double that is the value removed.
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remove
public void remove(int offset, int length) Removes length values from the list, starting at offset- Specified by:
remove
in interfaceTDoubleList
- Parameters:
offset
- anint
valuelength
- anint
value
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iterator
Creates an iterator over the values of the collection. The iterator supports element deletion.- Specified by:
iterator
in interfaceTDoubleCollection
- Returns:
- an
TDoubleIterator
value
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containsAll
Tests the collection to determine if all of the elements in collection are present.- Specified by:
containsAll
in interfaceTDoubleCollection
- Parameters:
collection
- aCollection
value- Returns:
- true if all elements were present in the collection.
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containsAll
Tests the collection to determine if all of the elements in TDoubleCollection are present.- Specified by:
containsAll
in interfaceTDoubleCollection
- Parameters:
collection
- aTDoubleCollection
value- Returns:
- true if all elements were present in the collection.
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containsAll
public boolean containsAll(double[] array) Tests the collection to determine if all of the elements in array are present.- Specified by:
containsAll
in interfaceTDoubleCollection
- Parameters:
array
- asarray
of double primitives.- Returns:
- true if all elements were present in the collection.
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addAll
Adds all of the elements in collection to the collection.- Specified by:
addAll
in interfaceTDoubleCollection
- Parameters:
collection
- aCollection
value- Returns:
- true if the collection was modified by the add all operation.
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addAll
Adds all of the elements in the TDoubleCollection to the collection.- Specified by:
addAll
in interfaceTDoubleCollection
- Parameters:
collection
- aTDoubleCollection
value- Returns:
- true if the collection was modified by the add all operation.
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addAll
public boolean addAll(double[] array) Adds all of the elements in the array to the collection.- Specified by:
addAll
in interfaceTDoubleCollection
- Parameters:
array
- aarray
of double primitives.- Returns:
- true if the collection was modified by the add all operation.
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retainAll
Removes any values in the collection which are not contained in collection.- Specified by:
retainAll
in interfaceTDoubleCollection
- Parameters:
collection
- aCollection
value- Returns:
- true if the collection was modified by the retain all operation
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retainAll
Removes any values in the collection which are not contained in TDoubleCollection.- Specified by:
retainAll
in interfaceTDoubleCollection
- Parameters:
collection
- aTDoubleCollection
value- Returns:
- true if the collection was modified by the retain all operation
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retainAll
public boolean retainAll(double[] array) Removes any values in the collection which are not contained in array.- Specified by:
retainAll
in interfaceTDoubleCollection
- Parameters:
array
- anarray
of double primitives.- Returns:
- true if the collection was modified by the retain all operation
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removeAll
Removes all of the elements in collection from the collection.- Specified by:
removeAll
in interfaceTDoubleCollection
- Parameters:
collection
- aCollection
value- Returns:
- true if the collection was modified by the remove all operation.
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removeAll
Removes all of the elements in TDoubleCollection from the collection.- Specified by:
removeAll
in interfaceTDoubleCollection
- Parameters:
collection
- aTDoubleCollection
value- Returns:
- true if the collection was modified by the remove all operation.
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removeAll
public boolean removeAll(double[] array) Removes all of the elements in array from the collection.- Specified by:
removeAll
in interfaceTDoubleCollection
- Parameters:
array
- anarray
of double primitives.- Returns:
- true if the collection was modified by the remove all operation.
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transformValues
Transform each value in the list using the specified function.- Specified by:
transformValues
in interfaceTDoubleList
- Parameters:
function
- aTDoubleFunction
value
-
reverse
public void reverse()Reverse the order of the elements in the list.- Specified by:
reverse
in interfaceTDoubleList
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reverse
public void reverse(int from, int to) Reverse the order of the elements in the range of the list.- Specified by:
reverse
in interfaceTDoubleList
- Parameters:
from
- the inclusive index at which to start reversingto
- the exclusive index at which to stop reversing
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shuffle
Shuffle the elements of the list using the specified random number generator.- Specified by:
shuffle
in interfaceTDoubleList
- Parameters:
rand
- aRandom
value
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subList
Returns a sublist of this list.- Specified by:
subList
in interfaceTDoubleList
- Parameters:
begin
- low endpoint (inclusive) of the subList.end
- high endpoint (exclusive) of the subList.- Returns:
- sublist of this list from begin, inclusive to end, exclusive.
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toArray
public double[] toArray()Copies the contents of the list into a native array.- Specified by:
toArray
in interfaceTDoubleCollection
- Specified by:
toArray
in interfaceTDoubleList
- Returns:
- an
double[]
value
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toArray
public double[] toArray(int offset, int len) Copies a slice of the list into a native array.- Specified by:
toArray
in interfaceTDoubleList
- Parameters:
offset
- the offset at which to start copyinglen
- the number of values to copy.- Returns:
- an
double[]
value
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toArray
public double[] toArray(double[] dest) Copies a slice of the list into a native array.If the list fits in the specified array with room to spare (i.e., the array has more elements than the list), the element in the array immediately following the end of the list is set to
TDoubleList.getNoEntryValue()
. (This is useful in determining the length of the list only if the caller knows that the list does not contain any "null" elements.)NOTE: Trove does not allocate a new array if the array passed in is not large enough to hold all of the data elements. It will instead fill the array passed in.
- Specified by:
toArray
in interfaceTDoubleCollection
- Specified by:
toArray
in interfaceTDoubleList
- Parameters:
dest
- the array to copy into.- Returns:
- the array passed in.
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toArray
public double[] toArray(double[] dest, int offset, int len) Copies a slice of the list into a native array.- Specified by:
toArray
in interfaceTDoubleList
- Parameters:
dest
- the array to copy into.offset
- the offset where the first value should be copiedlen
- the number of values to copy.- Returns:
- the array passed in.
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toArray
public double[] toArray(double[] dest, int source_pos, int dest_pos, int len) Copies a slice of the list into a native array.- Specified by:
toArray
in interfaceTDoubleList
- Parameters:
dest
- the array to copy into.source_pos
- the offset of the first value to copydest_pos
- the offset where the first value should be copiedlen
- the number of values to copy.- Returns:
- the array passed in.
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equals
Compares the specified object with this collection for equality. Returns true if the specified object is also a collection, the two collection have the same size, and every member of the specified collection is contained in this collection (or equivalently, every member of this collection is contained in the specified collection). This definition ensures that the equals method works properly across different implementations of the collection interface.- Specified by:
equals
in interfaceTDoubleCollection
- Overrides:
equals
in classObject
- Parameters:
other
- object to be compared for equality with this collection- Returns:
- true if the specified object is equal to this collection
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hashCode
public int hashCode()Returns the hash code value for this collection. The hash code of a collection is defined to be the sum of the hash codes of the elements in the collection. This ensures that s1.equals(s2) implies that s1.hashCode()==s2.hashCode() for any two collection s1 and s2, as required by the general contract ofObject.hashCode()
.- Specified by:
hashCode
in interfaceTDoubleCollection
- Overrides:
hashCode
in classObject
- Returns:
- the hash code value for this collection
- See Also:
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forEach
Applies the procedure to each value in the list in ascending (front to back) order.- Specified by:
forEach
in interfaceTDoubleCollection
- Specified by:
forEach
in interfaceTDoubleList
- Parameters:
procedure
- aTDoubleProcedure
value- Returns:
- true if the procedure did not terminate prematurely.
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forEachDescending
Applies the procedure to each value in the list in descending (back to front) order.- Specified by:
forEachDescending
in interfaceTDoubleList
- Parameters:
procedure
- aTDoubleProcedure
value- Returns:
- true if the procedure did not terminate prematurely.
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sort
public void sort()Sort the values in the list (ascending) using the Sun quicksort implementation.- Specified by:
sort
in interfaceTDoubleList
- See Also:
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sort
public void sort(int fromIndex, int toIndex) Sort a slice of the list (ascending) using the Sun quicksort implementation.- Specified by:
sort
in interfaceTDoubleList
- Parameters:
fromIndex
- the index at which to start sorting (inclusive)toIndex
- the index at which to stop sorting (exclusive)- See Also:
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fill
public void fill(double val) Fills every slot in the list with the specified value.- Specified by:
fill
in interfaceTDoubleList
- Parameters:
val
- the value to use when filling
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fill
public void fill(int fromIndex, int toIndex, double val) Fills a range in the list with the specified value.- Specified by:
fill
in interfaceTDoubleList
- Parameters:
fromIndex
- the offset at which to start filling (inclusive)toIndex
- the offset at which to stop filling (exclusive)val
- the value to use when filling
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binarySearch
public int binarySearch(double value) Performs a binary search for value in the entire list. Note that you must @{link #sort sort} the list before doing a search.- Specified by:
binarySearch
in interfaceTDoubleList
- Parameters:
value
- the value to search for- Returns:
- the absolute offset in the list of the value, or its negative insertion point into the sorted list.
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binarySearch
public int binarySearch(double value, int fromIndex, int toIndex) Performs a binary search for value in the specified range. Note that you must @{link #sort sort} the list or the range before doing a search.- Specified by:
binarySearch
in interfaceTDoubleList
- Parameters:
value
- the value to search forfromIndex
- the lower boundary of the range (inclusive)toIndex
- the upper boundary of the range (exclusive)- Returns:
- the absolute offset in the list of the value, or its negative insertion point into the sorted list.
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indexOf
public int indexOf(double value) Searches the list front to back for the index of value.- Specified by:
indexOf
in interfaceTDoubleList
- Parameters:
value
- andouble
value- Returns:
- the first offset of the value, or -1 if it is not in the list.
- See Also:
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indexOf
public int indexOf(int offset, double value) Searches the list front to back for the index of value, starting at offset.- Specified by:
indexOf
in interfaceTDoubleList
- Parameters:
offset
- the offset at which to start the linear search (inclusive)value
- andouble
value- Returns:
- the first offset of the value, or -1 if it is not in the list.
- See Also:
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lastIndexOf
public int lastIndexOf(double value) Searches the list back to front for the last index of value.- Specified by:
lastIndexOf
in interfaceTDoubleList
- Parameters:
value
- andouble
value- Returns:
- the last offset of the value, or -1 if it is not in the list.
- See Also:
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lastIndexOf
public int lastIndexOf(int offset, double value) Searches the list back to front for the last index of value, starting at offset.- Specified by:
lastIndexOf
in interfaceTDoubleList
- Parameters:
offset
- the offset at which to start the linear search (exclusive)value
- andouble
value- Returns:
- the last offset of the value, or -1 if it is not in the list.
- See Also:
-
contains
public boolean contains(double value) Searches the list for value- Specified by:
contains
in interfaceTDoubleCollection
- Specified by:
contains
in interfaceTDoubleList
- Parameters:
value
- andouble
value- Returns:
- true if value is in the list.
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grep
Searches the list for values satisfying condition in the manner of the *nix grep utility.- Specified by:
grep
in interfaceTDoubleList
- Parameters:
condition
- a condition to apply to each element in the list- Returns:
- a list of values which match the condition.
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inverseGrep
Searches the list for values which do not satisfy condition. This is akin to *nixgrep -v
.- Specified by:
inverseGrep
in interfaceTDoubleList
- Parameters:
condition
- a condition to apply to each element in the list- Returns:
- a list of values which do not match the condition.
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max
public double max()Finds the maximum value in the list.- Specified by:
max
in interfaceTDoubleList
- Returns:
- the largest value in the list.
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min
public double min()Finds the minimum value in the list.- Specified by:
min
in interfaceTDoubleList
- Returns:
- the smallest value in the list.
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sum
public double sum()Calculates the sum of all the values in the list.- Specified by:
sum
in interfaceTDoubleList
- Returns:
- the sum of the values in the list (zero if the list is empty).
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toString
-
writeExternal
- Specified by:
writeExternal
in interfaceExternalizable
- Throws:
IOException
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readExternal
- Specified by:
readExternal
in interfaceExternalizable
- Throws:
IOException
ClassNotFoundException
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