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JAVA Lab Programs

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1. Calculator using switch case: import java.util.Scanner; public class Calculator{ public static void main (String[] args) { Scanner scanner = new Scanner(System. in ); System. out .println( "Calculator" ); System. out .println( "1. Addition" ); System. out .println( "2. Subtraction" ); System. out .println( "3. Multiplication" ); System. out .println( "4. Division" ); System. out .println( "5. Exit" ); System. out .println( "Enter your choice: " ); int choice = scanner.nextInt(); switch (choice){ case 1 : System. out .println( "Enter two numbers: " ); int num1 = scanner.nextInt(); int num2 = scanner.nextInt(); int sum = num1 + num2; System. out .println( "The sum is: " + sum); break ; case 2 : ...
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HANGMAN GAME

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import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.Random; public class Main extends JFrame { private static final String[] WORDS = { "HELLO" , "WORLD" , "COMPUTER" , "JAVA" , "PROGRAMMING" , "ECLIPSE" }; private static final int MAX_TRIES = 6 ; private String wordToGuess ; private char [] guessedLetters ; private int triesLeft ; private JLabel wordLabel ; private JLabel triesLabel ; private JTextField letterInput ; private JButton guessButton ; public Main () { setTitle( "Hangman Game" ); setDefaultCloseOperation(JFrame. EXIT_ON_CLOSE ); setSize( 400 , 300 ); setLocationRelativeTo( null ); // Center window on screen // Initialize game state wordToGuess = selectWord(); guessedLetters = new char [ wordToGuess .length()]; triesLeft = MAX_...
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Flutter Lab Program

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5a1 import 'package:flutter/material.dart' ; class MyStatelessWidget extends StatelessWidget {   @override   Widget build ( BuildContext context) {     return Scaffold (       appBar : AppBar (         title : Text ( 'Stateless Widget Example' ),       ),       body : Center (         child : Text (           'Hello, Flutter!' , // In this example, MyStatelessWidget does not change after it is built. The text "Hello, Flutter!" is static.           style : TextStyle (fontSize : 24 ),         ),       ),     );   } } void main () {   runApp ( MaterialApp (     home : MyStatelessWidget (),   )); } 5a2 import 'package:flutter/material.dart' ; class MyStatefulWidget extends StatefulWidget {   @ override   _MyStatefulWidgetState createState...
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