Question

Java discussion question

What is Primitive Casting in Java programming language?

Explanation MUST be at LEAST a paragraph long. Don't forget to post Programming Examples.

Answer 1

Primitive Casting involves type casting of primitive data types in java which include byte,short,int,long,float,double,char.

There are 2 types in this 1. Implicit or Automatic or Widening type conversion 2. Explicit or Narrowing type conversion

Implicit conversion is the one which happens automatically without the need for us to write any special code for it. It happens when ever we are doing widening type conversion for example int to long

Explicit conversion doesn't automatically happen. We need to code it in our program.

Example code snippet for implicit

public class Casting{
    public static void main(String[] args){
        int num1 = 100;
        long num2 = num1; // Implicit conversion as int always fits in long
    }
}

Example code snippet for explicit

public class Casting{
    public static void main(String[] args){
        float num1 = 1.01;
        int num2 = (int)a; // Explicit conversion and there may be loss of data(here .01 is lost)
    }
}

There are however some impossible conversions

1.Primitive type to reference type(objects)

2.Any primitive to boolean or boolean to any primitive (obvious because boolean can only be true or false)