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Java Reflection - Array.setByte() Examples

[Last Updated: Nov 8, 2025]

Java Reflection Java Java API

Class:

java.lang.reflect.Array

Method:

public static void setByte(Object array,
                           int index,
                           byte b)
                    throws IllegalArgumentException,
                           ArrayIndexOutOfBoundsException

Sets the value of the indexed component of the specified array object to the specified byte value.

Examples

package com.logicbig.example.array;

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

public class SetByteExample {


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

Output

[0, 1, 2]

See Also