Computer Applications
Write a program by using a class with the following specifications:
Class name — Prime
Data members — private int n
Member functions:
- void input() — to input a number
- void checkprime() — to check and display whether the number is prime or not
Use a main function to create an object and call member methods of the class.
Java
Encapsulation & Inheritance in Java
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Answer
import java.util.Scanner;
public class Prime
{
private int n;
public void input() {
Scanner in = new Scanner(System.in);
System.out.print("Enter the number: ");
n = in.nextInt();
}
public void checkprime() {
boolean isPrime = true;
if (n == 0 || n == 1)
isPrime = false;
else {
for (int i = 2; i <= n / 2; i++) {
if (n % i == 0) {
isPrime = false;
break;
}
}
}
if (isPrime)
System.out.println("Prime Number");
else
System.out.println("Not a Prime Number");
}
public static void main(String args[]) {
Prime obj = new Prime();
obj.input();
obj.checkprime();
}
}Variable Description Table
Program Explanation
Output
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