public class long[][]
extends ObjectGDK enhancements for long[][].
| Type Params | Return Type | Name and description |
|---|---|---|
|
public long[] |
column(int col)Select a column from a 2D array. |
|
public long |
eachColumn(Closure<?> closure)Process the columns of the array. |
|
public List<Long> |
flatten()Flattens a 2D array into a new collection. |
|
public long |
transpose()A transpose method for 2D long arrays. |
|
public Iterator<long[]> |
transposing()An iterator of the columns of the array. |
| Methods inherited from class | Name |
|---|---|
class Object |
addShutdownHook, any, any, asBoolean, asType, collect, collect, collect, dump, each, eachMatch, eachMatch, eachWithIndex, every, every, find, find, findAll, findAll, findIndexOf, findIndexOf, findIndexValues, findIndexValues, findLastIndexOf, findLastIndexOf, findResult, findResult, findResult, findResult, getAt, getMetaClass, getMetaPropertyValues, getProperties, grep, grep, hasProperty, identity, inject, inject, inspect, invokeMethod, is, isCase, isNotCase, iterator, metaClass, print, print, printf, printf, println, println, println, putAt, respondsTo, respondsTo, setMetaClass, sleep, sleep, split, sprintf, sprintf, stream, tap, toString, use, use, use, with, with, withCloseable, withCloseable, withMethodClosure, withStream, withStream, withTraits |
Select a column from a 2D array.
long[][] nums = [[1L, 2L], [10L, 20L]]
assert nums.column(0) == [1L, 10L] as long[]
assert nums.column(1) == [2L, 20L] as long[]
Process the columns of the array.
double[][] nums = [[1L, 2L], [10L, 20L]]
nums.eachColumn {
assert it[0] * 10L == it[1]
}
closure - the closure applied on each array columnFlattens a 2D array into a new collection. The items are copied row by row.
Example usage:
long[][] array = [[0, 1], [2, 3]]
assert array.flatten() == [0, 1, 2, 3]
A transpose method for 2D long arrays.
Example usage:
long[][] longs = [[1L, 3L, 5L], [2L, 4L, 6L]]
long[][] expected = [[1L, 2L], [3L, 4L], [5L, 6L]]
def result = longs.transpose()
assert result == expected
assert longs.class.componentType == result.class.componentType
An iterator of the columns of the array.
long[][] nums = [[1L, 2L], [10L, 20L]]
assert nums.transpose() == nums.transposing().toList()
assert nums.transposing().collect{ long[] col -> col.sum() } == [11L, 22L]