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What is the difference between method overloading and method hiding in Java?
method hiding − When super class and the sub class contains same methods including parameters, and if they are static and, when called, the super class method is hidden by the method of the sub class this is known as method hiding.
Example
class Demo{
public static void demoMethod() {
System.out.println("method of super class");
}
}
public class Sample extends Demo{
public static void demoMethod() {
System.out.println("method of sub class");
}
public static void main(String args[] ){
Sample.demoMethod();
}
}
Output
method of sub class
method overloading − When a class contains two methods with same name and different parameters, when called, JVM executes this method based on the method parameters this is known as method overloading.
Example
public class Sample{
public static void add(int a, int b){
System.out.println(a+b);
}
public static void add(int a, int b, int c){
System.out.println(a+b+c);
}
public static void main(String args[]){
Sample obj = new Sample();
obj.add(20, 40);
obj.add(40, 50, 60);
}
}
Output
60 150
Updated on: 30-Jul-2019
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