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Java Collections - Arrays.setAll() Examples

Java Collections Java Java API 

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Class:

java.util.Arrays

java.lang.Objectjava.lang.Objectjava.util.Arraysjava.util.ArraysLogicBig

Methods:

These methods set all elements of the specified array, using the provided generator function to compute each element.

public static <T> void setAll(T[] array,
                              IntFunction<? extends T> generator)

public static void setAll(int[] array,
                          IntUnaryOperator generator)

public static void setAll(long[] array,
                          IntToLongFunction generator)

public static void setAll(double[] array,
                          IntToDoubleFunction generator)

Examples


package com.logicbig.example.arrays;

import java.util.Arrays;

public class SetAllExample {

    public static void main(String... args) {
        int[] arr = new int[10];
        Arrays.setAll(arr, (index) -> 1 + index);
        System.out.println(Arrays.toString(arr));
    }
}

Output

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]




package com.logicbig.example.arrays;

import java.util.Arrays;

public class SetAllExample2 {

    public static void main(String... args) {
        String[] arr = new String[10];
        Arrays.parallelSetAll(arr, (index) -> Integer.toString(index + 1));
        System.out.println(Arrays.toString(arr));
    }
}

Output

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

See Also