package JavaSessions;

public class FunctionsInJava {

public static void main(String[] args) {

//object of the class: new keyword

FunctionsInJava obj = new FunctionsInJava();

obj.test();

int k = obj.div();

System.out.println("div is:"+ k);

String s1 = obj.PQR();

System.out.println(s1);

int mul = obj.multiply(10, 20);

System.out.println("multiply is:"+ mul);

int mul1 = obj.multiply(20, 30);

System.out.println("multiply is:"+ mul1);

}

//function can not be created inside a function

//functions are independent to each other or parallel to each other

//method overloading: within the same class, if there are number of methods having the same method name but different parameters.

public void sum(){ //0 param

System.out.println("sum with zero param");

}

public void sum(int i){ //1 param

}

public void sum(int i, int j){ //2 params

}

public void sum(String p, String q){ //2 params

}

//1. no ip and no op

//void --> does not return any value

public void test(){

System.out.println("test method");

int a = 10;

int b = 20;

int c = a+b;

System.out.println("sum is:"+c);

}

//2. no ip but some op

public int div(){

System.out.println("div method");

int p = 30;

int q = 10;

int r = p/q;

return r;

}

public String PQR(){

System.out.println("multiply method");

String s = "Selenium";

return s;

}

//3. some ip and some op

public int multiply(int m, int n){

System.out.println("multiply method");

int l = m * n;

return l;

}

}