Question

2 programs of constructor in java !!!!!​

Answer 1

1.

import java.util.*;

class Calculate{

int num,f,rev;

Calculate(int n){

 num = n

 f = 0;

 rev = 0;

}

 

void prime(){

 int ctr = 0;

 for(int i = 1; i <= num; i++){

  if(num % i == 0)

   ctr++;

 }

 if(ctr == 2)

  System.out.println("1");

}

}

2.

import java.util.*;

class Prime{

int n;

public Prime(){

 n = 0;

}

void input(int x){

 n=x;

}

void display(){

 int ctr = 0;

 for(int i = 1; i <= n; i++){

  if(n%i == 0)

   ctr++;

 }

 if(ctr == 2)

  System.out.println("The number is prime");

}

public static void main(String args[]){

 Prime ob = new Prime();

 Scanner in = new Scanner(System.in);

 System.out.println("Enter a number");

 int num = in.nextInt();

 ob.input(num);

 ob.display();

}

}

Hope this helps,

ira.