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How to overload methods in Java
Problem Description
How to overload methods?
Solution
This example displays the way of overloading a method depending on type and number of parameters.
class MyClass { int height; MyClass() { System.out.println("bricks"); height = 0; } MyClass(int i) { System.out.println("Building new House that is " + i + " feet tall"); height = i; } void info() { System.out.println("House is " + height + " feet tall"); } void info(String s) { System.out.println(s + ": House is " + height + " feet tall"); } } public class MainClass { public static void main(String[] args) { MyClass t = new MyClass(0); t.info(); t.info("overloaded method"); //Overloaded constructor: new MyClass(); } }
Result
The above code sample will produce the following result.
Building new House that is 0 feet tall. House is 0 feet tall. Overloaded method: House is 0 feet tall. bricks
The following is an another sample example of Method Overloading
public class Calculation { void sum(int a,int b){System.out.println(a+b);} void sum(int a,int b,int c){System.out.println(a+b+c);} public static void main(String args[]){ Calculation cal = new Calculation(); cal.sum(20,30,60); cal.sum(20,20); } }
The above code sample will produce the following result.
110 40
java_methods.htm
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