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Can I override a static method?

Rajesh Goswami 2787 16 Apr 2011

Can i override a static method?

please give the example.

java java
Updated 16 Apr 2011
Rajesh Goswami
Rajesh Goswami

Other

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1 Answers

Amit Singh
Amit Singh 16 Apr 2011
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Method Overriding is done for achieving dynamic binding behavior, where the method calls are resolved at runtime. Therefore the answer is: "No", static method belongs to a class & its calls are resolved at compile time so it can not be overridden to give dynamic binding behavior. Though you can have a method with same name in derived class but it will not be dynamic behavior.
Example:
package inheritance;
public class Parent {
public static void myStaticMethod() {
System.out.println("Calling " + Parent.class); 
}
}
package inheritance;
public class Child extends Parent {
public static void myStaticMethod() {
System.out.println("Calling " + Child.class); 
}
}
package inheritance;
public class Test {
public static void main(String[] args) {
Parent p = new Parent();
/*
* Should call the parents implementation
*/
p.myStaticMethod();
Child c = new Child();
/*
* Should call the child implementation
*/
c.myStaticMethod();
Parent p2 = new Child();
/*
* Should call the child implementation in case of dynamic binding
* but it does not as the static method is associated with the 
* reference type and here we have a reference of Parent class.
* Hence parents implementation is called. 
*/
 p2.myStaticMethod(); 
}
}
output.
Calling class inheritance.Parent
Calling class inheritance.Child
Calling class inheritance.Parent
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