Want to know about how to implement the concepts.

Question

I want to know about do the file operations using the below concepts but i am having many doubts from this.first i want to know about how to implement the file related operation in the below concepts 1.Abstract class 2.Interface 3.Method overloading 4.Operator overloading i want to know the breif explanation of the concepts. i anyone know how to implement the file related operation though file concept please reply soon as possible... :)

Delpin Susai Raj · Answer

4. operator overloading public static void main(String[] args) { final String first = length: 10; final String second = length:  + first.length(); System.out.println(first and second are equal:  + first == second); } or click this link http://www.javajee.com/operator-plus-overloading-in-java

Delpin Susai Raj · Answer

3.method overloading class Calculation{ void sum(int aint b){System.out.println(a+b);} void sum(int aint bint c){System.out.println(a+b+c);} public static void main(String args[]){ Calculation obj= new Calculation(); obj.sum( 101010); obj.sum( 2020); } } or view this link http://www.javatpoint.com/method-overloading-in-java

Delpin Susai Raj · Answer

2.interface interface s { void print(); } interface c extends s { void msg(); } class R implements c { public void print() { System.out.println(Hello Print); } public void msg() { System.out.println(Hello Msg); } public static void main(String args[]) { R d=new R(); d.print(); d.msg(); } }

Delpin Susai Raj · Answer

1.abstract class abstract class Bike{ abstract void run(); } class Honda4 extends Bike{ void run(){System.out.println(running safely..);} public static void main(String args[]){ Bike obj = new Honda4(); obj.run(); } } or click this link http://www.javatpoint.com/abstract-class-in-java