Home » Java programming language

Java Class class isPrimitive() method with example

Class class isPrimitive() method: Here, we are going to learn about the isPrimitive() method of Class class with its syntax and example.
Submitted by Preeti Jain, on November 02, 2019

Class class isPrimitive() method

• isPrimitive() method is available in java.lang package.
• isPrimitive() method is used to check whether this Class object denotes a primitive type or not.
• In Java, we have a predefined Class object to denote primitive and void but the important thing Class object has a similar name as primitives like byte, char, short, int, long, float and double.
• isPrimitive() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• isPrimitive() method does not throw an exception at the time of checking primitive.

Syntax:

    public boolean isPrimitive();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of this method is boolean, it returns a boolean value based on the following cases,

• It returns true, when this Class object denotes primitive type.
• It returns false, when this Class object does not denote a primitive type.

Example:

// Java program to demonstrate the example 
// of boolean isPrimitive() method of Class 

public class IsPrimitiveOfClass {
    public static void main(String[] args) {
        // Create and Return String class
        String str = new String();
        Class cl1 = str.getClass();

        // Create and Return short
        short sh = 10;
        Class cl2 = short.class;

        // We are checking the class denotes primitive type
        boolean b1 = cl1.isPrimitive();
        boolean b2 = cl2.isPrimitive();

        System.out.print("Is" + " " + cl1.getSimpleName() + " ");
        System.out.println("Primitive" + ": " + b1);

        System.out.print("Is" + " " + cl2.getSimpleName() + " ");
        System.out.println("Primitive" + ": " + b2);
    }
}

Output

Is String Primitive: false
Is short Primitive: true