Java.io.ObjectStreamField.isPrimitive() Method

Description

The java.io.ObjectStreamField.isPrimitive() method returns true if this field has a primitive type.

Declaration

Following is the declaration for java.io.ObjectStreamField.isPrimitive() method

public boolean isPrimitive()

Parameters

• NA

Return Value

This method returns true if and only if this field corresponds to a primitive type

Exception

• NA

Example

The following example shows the usage of java.io.ObjectStreamField.isPrimitive() method.

package com.tutorialspoint;

import java.io.*;
import java.util.Calendar;

public class ObjectStreamFieldDemo {

   public static void main(String[] args) {

      // create a new object stream class for Integers
      ObjectStreamClass osc = ObjectStreamClass.lookup(Integer.class);

      // get the field value from Integer class
      ObjectStreamField field = osc.getField("value");

      // check if field is primitive
      System.out.println("" + field.isPrimitive());

      // create a new object stream class for calendar
      ObjectStreamClass osc2 = ObjectStreamClass.lookup(Calendar.class);

      // get the field value from Integer class
      ObjectStreamField field2 = osc2.getField("isSet");

      // check if field is primitive
      System.out.println("" + field2.isPrimitive());

   }
}

Let us compile and run the above program, this will produce the following result:

true
false