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B.TECH I YEAR • II SEMESTER

Object Oriented Programming Through Java

Java Programming Laboratory • Lab Manual

☕ Java Lab 🎓 II Year 📚 I Semester ☕ Java Programming 🧪 Lab Program
Experiment 1

Use Eclipse or NetBeans to familiarize yourself with the menus, test project and class creation, running a program, auto suggestions and fill, formatter and refactoring features, and debugging a small program using if/else and for loop.

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Experiment 1: Check Whether a Given Number is Prime or Not

Aim

Write a Java program to check whether a given number is prime or not.

Program

/* Sample java program to check given number is prime or not */
//Importing packages
import java.lang.System;
import java.util.Scanner;

// Creating Class
class Sample_Program {
    // main method
    public static void main(String args[]) {
        int i, count = 0, n;

        // creating scanner object
        Scanner sc = new Scanner(System.in);

        // get input number from user
        System.out.print("Enter Any Number : ");
        n = sc.nextInt();

        // logic to check prime or not
        for (i = 1; i <= n; i++) {
            if (n % i == 0) {
                count++;
            }
        }

        if (count == 2)
            System.out.println(n + " is prime");
        else
            System.out.println(n + " is not prime");
    }
}

Sample Output

Enter Any Number : 23
23 is prime
Enter Any Number : 45
45 is not prime

💻 Run This Java Program

Use Eclipse or NetBeans to familiarize yourself with the menus, test project and class creation, running a program, auto suggestions and fill, formatter and refactoring features, and debugging a small program using if/else and for loop.
The selected Java program is loaded automatically into the editor. Edit the program, provide input if required and click Run.

The compiler is embedded using OneCompiler. Your Java program runs inside the embedded Java environment; Study Glance does not execute Java code directly on your web server.
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