java examples
Home Java Examples Resources Java Interview Questions
Brainpower SEO

How to check if a class represent a primitive type?

Java uses class objects to represent all eight primitive types. A class object that represents a primitive type can be identified using the isPrimitive() method call. void is not a type in Java, but the isPrimitive() method returns true for void.class.

package com.javacoderanch.example.lang.reflect;

public class IsPrimitiveDemo {
    public static void main(String[] args) {

    private static void get(Class clazz) {
        if (clazz.isPrimitive()) {
            System.out.println(clazz.getName() +
                    " is a primitive type.");
        } else {
            System.out.println(clazz.getName() +
                    " is not a primitive type.");            

Here is the result of the program:

int is a primitive type.
java.lang.String is not a primitive type.
double is a primitive type.
void is a primitive type.