Java Type Casting

Java Type Casting

Type casting is when you assign a value of one primitive data type to another type.

In Java, there are two types of casting:

Widening Casting (automatically) - converting a smaller type to a larger type size

• byte -> short -> char -> int -> long -> float -> double

            

 Narrowing Casting (manually) - converting a larger type to a smaller size type

• double -> float -> long -> int -> char -> short -> byte

Let's saw some program of automatic type casting:

 package com.ritesh;
 public class TypeCaster {
    public static void main(String[] args) {
     int x=10;    //giving the value 10 in integer x;
     double y=x;   //value y in x;
        System.out.println("The value of x is "+x );
        System.out.println("The value of y is "+ y);
    }
 }

It is easy to convert the integer datatype into double datatype.

Let's saw some program of manually type casting..

 package com.ritesh;
 public class TypeCaster {
    public static void main(String[] args) {
        double d1=4.55;
        int d2=(int)d1;
        System.out.println("the value of d1 is "+d1);
        System.out.println("The value of d2 is "+ d2);
    }
 }