Default value of primitive data types in Java

Primitive datatypes are predefined by the language and named by a keyword in Java. Here is an example to display the default value of primitive data types.

Example

 Live Demo

public class Demo {    static boolean val1;    static double val2;    static float val3;    static int val4;    static long val5;    static String val6;    public static void main(String[] args) {       System.out.println("Default values.....");       System.out.println("Val1 = " + val1);       System.out.println("Val2 = " + val2);       System.out.println("Val3 = " + val3);       System.out.println("Val4 = " + val4);       System.out.println("Val5 = " + val5);       System.out.println("Val6 = " + val6);    } }

Output

Default values..... Val1 = false Val2 = 0.0 Val3 = 0.0 Val4 = 0 Val5 = 0 Val6 = null

Above, firstly we have declared variables of specific type. Remember, to get the default values, you do not need to assign values to the variable.

static boolean val1; static double val2; static float val3; static int val4; static long val5; static String val6;

Now to display the default values, you need to just print the variables.

System.out.println("Val1 = " + val1); System.out.println("Val2 = " + val2); System.out.println("Val3 = " + val3); System.out.println("Val4 = " + val4); System.out.println("Val5 = " + val5); System.out.println("Val6 = " + val6);