Java Long class

Java Class Cast() Method

Last Updated : 17 Mar 2025

The cast() method of java Class class casts an object to the class or interface represented by this Class object.

Syntax

Parameter

obj - the object to be cast

Returns

the object after casting, or null if obj is null

Throws

ClassCastException

Example 1

class Base {
   public Base() {
      System.out.println("Class Base ");
   }
}
class Derived extends Base {
   public static void Derived2() {
      System.out.println("Class Derived ");
   }
}
public class ClassasCastExample1 {
   public static void main(String[] args) {
      ClassasCastExample2 class1 = new ClassasCastExample2();
      Class obj = class1.getClass();      
      System.out.println(obj);  
      Base obj1 = new Base();        
      Derived obj2 = new Derived();
      Object obbj = Base.class.cast(obj1);

      System.out.println(obj1.getClass());
      System.out.println(obj2.getClass());
      System.out.println(obbj.getClass());               
   }
} 

Output:

class ClassasCastExample2
class Base
class Derived
class Base

Example 2

class Base {
   public static void Display() {
      System.out.println("Class Base Display() function");
   }
}
class Derived extends Base {
   public static void Display() {
      System.out.println("Class Derived Display() function");
   }
}
public class ClassasCastExample2  {
   public static void main(String[] args) {
      ClassasCastExample2 class1 = new ClassasCastExample2();
      Class obj = class1.getClass();      
      System.out.println(obj);  

      Object obj1 = new Base();        
      Derived obj2 = new Derived();
      obj2.Display();

      Object obbj = Base.class.cast(obj1);
      System.out.println(obj1.getClass());
      System.out.println(obj2.getClass());
      System.out.println(obbj.getClass());               
   }
} 

Output:

class ClassasCastExample2
Class Derived Display() function
class Base
class Derived
class Base

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Java Class Cast() Method

Syntax

Parameter

Returns

Throws

Example 1

Example 2

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