What is the default value of Boolean field?

The default value for a Boolean (or any object) field is null.

The default value for a boolean (primitive) field is false.

DemoClass.java

package com.sample.app;

public class DemoClass {
 boolean primVariable;
 Boolean objVariable;
}

App.java

package com.sample.app;

public class App {

 public static void main(String[] args) {
  DemoClass obj = new DemoClass();

  System.out.println("Primitive : " + obj.primVariable);
  System.out.println("Object : " + obj.objVariable);
 }

}

Output

Primitive : false

Object : null

Reference

https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

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