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Java Reflection - Field.getByte() Examples

[Last Updated: Nov 8, 2025]

Java Reflection Java Java API 

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Class:

java.lang.reflect.Field

java.lang.Objectjava.lang.Objectjava.lang.reflect.AccessibleObjectjava.lang.reflect.AccessibleObjectjava.lang.reflect.AnnotatedElementAnnotatedElementjava.lang.reflect.Fieldjava.lang.reflect.Fieldjava.lang.reflect.MemberMemberLogicBig

Method:

public byte getByte(Object obj)
             throws IllegalArgumentException,
                    IllegalAccessException

Gets the value of a static or instance byte field. The provided 'obj' is the object to extract the byte value from (should be null for static fields).


Examples


package com.logicbig.example.field;

import java.lang.reflect.Field;

public class GetByteExample {
    private static byte aStaticByte = 2;
    private byte aByte;


    public GetByteExample(byte aByte) {
        this.aByte = aByte;
    }

    public static void main(String... args) throws NoSuchFieldException, IllegalAccessException {
        GetByteExample obj = new GetByteExample((byte) 10);
        Field field = obj.getClass().getDeclaredField("aByte");
        byte aByte = field.getByte(obj);
        System.out.println(aByte);

        Field field2 = GetByteExample.class.getDeclaredField("aStaticByte");
        byte aByte2 = field2.getByte(null);
        System.out.println(aByte2);
    }
}

Output

10
2

See Also