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Java Programming [ Lab Programs ]

Aim:

Use eclipse or Netbean platform and acquaint with the various menus, create a test project, add a test class and run it see how you can use auto suggestions, auto fill. Try code formatter and code refactoring like renaming variables, methods and classes. Try debug step by step with a small program of about 10 to 15 lines which contains at least one if else condition and a for loop.

Source Code:

Sample_Program.java


/* 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"); 

 

    }  

}

Output:

Java Programming Lab Programs

1) Use eclipse or Netbean platform and acquaint with the various menus, create a test project, add a test class and run it see how you can use auto suggestions, auto fill. Try code formatter and code refactoring like renaming variables, methods and classes. Try debug step by step with a small program of about 10 to 15 lines which contains at least one if else condition and a for loop. View Solution

2) Write a Java program to demonstrate the OOP principles. [i.e., Encapsulation, Inheritance, Polymorphism and Abstraction] View Solution

3) Write a Java program to handle checked and unchecked exceptions. Also, demonstrate the usage of custom exceptions in real time scenario. View Solution

4) Write a Java program on Random Access File class to perform different read and write operations. View Solution

5) Write a Java program to demonstrate the working of different collection classes. [Use package structure to store multiple classes]. View Solution

6) Write a program to synchronize the threads acting on the same object. [Consider the example of any reservations like railway, bus, movie ticket booking, etc.] View Solution

7) Write a program to perform CRUD operations on the student table in a database using JDBC. View Solution

8) Write a Java program that works as a simple calculator. Use a grid layout to arrange buttons for the digits and for the +, -,*, % operations. Add a text field to display the result. Handle any possible exceptions like divided by zero. View Solution

9) Write a Java program that handles all mouse events and shows the event name at the center of the window when a mouse event is fired. [Use Adapter classes] View Solution