simple low level program question using methods , objects

[karmic lintel]

also i have to use methods to do that , the program i made is in the thread , i would love some corrections and shot tricks .
i have to make a simple program which features continuing , repeating and ending it.
it must be very easy for programmers who have/are studied/studying java/c++

[vernal lake]

<@&987246399047479336> please have a look, thanks.

[vernal lake]

While you are waiting for getting help, here are some tips to improve your experience:

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[karmic lintel]

import java.util.*;
class addfunc
{
    int a,b,ans,d;
    addfunc(int m,int n)
    {
        a=m;
        b=n;
    }

    void calculate()
    {
        ans=a+b;
    }

    void display1()
    {
        System.out.println("Answer is "+ans);
        d=ans;
    }
        void display2()
    {
        System.out.println("Answer is "+ans);
    }

    public static void main(String args[])
    {
        int f,s,rep=0,d;
        Scanner sc=new Scanner(System.in);
        do
        {
            if(rep==1||rep==0)
            {
                System.out.println("enter the first number and second number");
                f=sc.nextInt();
                s=sc.nextInt();
                addfunc ob=new addfunc(f,s);
                ob.calculate();
                ob.display1();
            }
            else
            {
                System.out.println("enter the second number");
                s=sc.nextInt();
                ob.display1();
                f=d;
                addfunc ob=new addfunc(f,s);
                ob.calculate();
                ob.display2();                
            }
            System.out.println("press 1 to retry , 2 to continue , 3 to end");
            rep=sc.nextInt();
        }while(rep==1||rep==2);
    }
}    

[vernal lake]

Detected code, here are some useful tools:

Formatted code

import java.util. * ;

class addfunc {
  int a, b, ans, d;
  addfunc(int m, int n) {
    a = m;
    b = n;
  }
  void calculate() {
    ans = a + b;
  }
  void display1() {
    System.out.println("Answer is " + ans);
    d = ans;
  }
  void display2() {
    System.out.println("Answer is " + ans);
  }
  public static void main(String args[] ) {
    int f, s, rep = 0, d;
    Scanner sc = new Scanner(System.in);
    do {
      if (rep == 1 || rep == 0) {
        System.out.println("enter the first number and second number");
        f = sc.nextInt();
        s = sc.nextInt();
        addfunc ob = new addfunc(f, s);
        ob.calculate();
        ob.display1();
      }
      else {
        System.out.println("enter the second number");
        s = sc.nextInt();
        ob.display1();
        f = d;
        addfunc ob = new addfunc(f, s);
        ob.calculate();
        ob.display2();
      }
      System.out.println("press 1 to retry , 2 to continue , 3 to end");
      rep = sc.nextInt();
    }
    while (rep == 1 || rep == 2);
  }
}

[shut zenith]

instead of having a method which calculates variables you have in your class, you should have a parameter which the method gets and need to calculate it and when it finished it should return that value

and do not create method display just for one single line of System.out.print

[karmic lintel]

ok thanks dude

[karmic lintel]

i appreciate it

how do i delete this thread?