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Java Reflection - Array.getByte() Examples

[Last Updated: Nov 8, 2025]

Java Reflection Java Java API

Class:

java.lang.reflect.Array

Method:

public static byte getByte(Object array,
                           int index)
                    throws IllegalArgumentException,
                           ArrayIndexOutOfBoundsException

Returns the value of the indexed component in the specified array object, as a byte .

Examples

package com.logicbig.example.array;

import java.lang.reflect.Array;

public class GetByteExample {

    public static void main(String... args) {
        byte[] arr = {1, 2, 3, 4};
        byte aByte = Array.getByte(arr, 3);
        System.out.println(aByte);
    }
}

Output

package com.logicbig.example.array;

import java.lang.reflect.Array;

public class GetByteExample2 {

    public static void main(String... args) {
        Byte[] arr = {1, 2, 3, 4};
        byte aByte = Array.getByte(arr, 3);
        System.out.println(aByte);
    }
}

Output

java.lang.IllegalArgumentException: Argument is not an array of primitive type
    at java.lang.reflect.Array.getByte (Native Method)
    at com.logicbig.example.array.GetByteExample2.main (GetByteExample2.java:14)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at java.lang.Thread.run (Thread.java:834)

See Also