Polymorphism.java

// Java program to demonstrate Polymorphism 

// This class will contain 
// 3 methods with same name, 
// yet the program will 
// compile & run successfully 
publicclassSum { 

// Overloaded sum(). 
// This sum takes two int parameters 
publicintsum(intx, inty) 
 { 
return (x + y); 
 } 

// Overloaded sum(). 
// This sum takes three int parameters 
publicintsum(intx, inty, intz) 
 { 
return (x + y + z); 
 } 

// Overloaded sum(). 
// This sum takes two double parameters 
publicdoublesum(doublex, doubley) 
 { 
return (x + y); 
 } 

// Driver code 
publicstaticvoidmain(Stringargs[]) 
 { 
Sums = newSum(); 
System.out.println(s.sum(10, 20)); 
System.out.println(s.sum(10, 20, 30)); 
System.out.println(s.sum(10.5, 20.5)); 
 } 
}