public class int[][]
extends ObjectGDK enhancements for int[][].
| Type Params | Return Type | Name and description |
|---|---|---|
|
public int[] |
column(int col)Select a column from a 2D array. |
|
public int |
eachColumn(Closure<?> closure)Process the columns of the array. |
|
public List<Integer> |
flatten()Flattens a 2D array into a new collection. |
|
public int |
transpose()A transpose method for 2D int arrays. |
|
public Iterator<int[]> |
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.
int[][] nums = [[1, 2], [10, 20]]
assert nums.column(0) == [1, 10] as int[]
assert nums.column(1) == [2, 20] as int[]
Process the columns of the array.
double[][] nums = [[1, 2], [10, 20]]
nums.eachColumn {
assert it[0] * 10 == 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:
int[][] array = [[0, 1], [2, 3]]
assert array.flatten() == [0, 1, 2, 3]
A transpose method for 2D int arrays.
Example usage:
int[][] nums = [[10, 15, 20], [30, 35, 40]]
int[][] expected = [[10, 30], [15, 35], [20, 40]]
assert nums.transpose() == expected
An iterator of the columns of the array.
int[][] nums = [[1, 2], [10, 20]]
assert nums.transpose() == nums.transposing().toList()
assert nums.transposing().collect{ int[] col -> col.sum() } == [11, 22]