Complete the following java program. class A{ int alpha; int beta; public A(int alpha, int beta){ this.alpha = alpha; this.beta = beta; } public…

Complete the following java program.

class A{
int alpha;
int beta;
public A(int alpha, int beta){
    this.alpha = alpha;
    this.beta = beta;
}
public void display(){
System.out.println("Alpha"+alpha+ "\nBeta"+beta);
}
}
class Gamma extends A{
    ________________________
    ________________________
    ________________________
    ________________________
}
@override
public void display(){
    ________________________
    ________________________
}
}
public class main{
    public static void main(String[]args){
    Gamma g = new Gamma(3,30,10);
    g.display();
    }
}