Java Reflection - Array.set() Examples

Java Reflection Java Java API 

Class:

java.lang.reflect.Array

Method:

public static void set(Object array,
                       int index,
                       Object value)
                throws IllegalArgumentException,
                       ArrayIndexOutOfBoundsException

Sets the value of the indexed component of the specified array object to the specified new value. The new value is first automatically unwrapped if the array has a primitive component type.

Examples

package com.logicbig.example.array;

import java.lang.reflect.Array;
import java.util.Arrays;

public class SetExample {

    public static void main(String... args) {
        Object o = Array.newInstance(String.class, 3);
        for (int i = 0; i < 3; i++) {
            Array.set(o, i, String.valueOf(i));
        }
        System.out.println(Arrays.toString((Object[]) o));
    }
}

Output

[0, 1, 2]