Java Tutorials MP - Learn Java in Hindi & English | Easy & Practical Java Programming

import java.io.FileInputStream; import java.io.IOException; public class ReadImageFile {     public static void main(String[] args) {         String imagePath = "yourImageFile.jpg"; // Replace with the actual image file path and name         try (FileInputStream fileInputStream = new FileInputStream(imagePath)) {             int byteRead;             while ((byteRead = fileInputStream.read()) != -1) {                 System.out.print((char) byteRead);             }         } catch (IOException e) {             System.err.println("Error reading the image file: " + e.getMessage());         }     } }

import java.io.*; public class MergeFiles {     public static void main(String[] args) {         String inputFile1 = "inputFile1.txt"; // Replace with the actual file path and name         String inputFile2 = "inputFile2.txt"; // Replace with the actual file path and name         String outputFile = "outputFile.txt"; // Replace with the desired output file path and name         mergeFiles(inputFile1, inputFile2, outputFile);         System.out.println("Files merged successfully!");     }     private static void mergeFiles(String inputFile1, String inputFile2, String outputFile) {         try (BufferedReader reader1 = new BufferedReader(new FileReader(inputFile1));              BufferedReader reader2 = new BufferedReader(new FileReader(inputFile2));              BufferedW...

import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; public class ReadTextFile {     public static void main(String[] args) {         String filePath = "yourFileName.txt"; // Replace with the actual file path and name         try (BufferedReader br = new BufferedReader(new FileReader(filePath))) {             String line;             while ((line = br.readLine()) != null) {                 System.out.println(line);             }         } catch (IOException e) {             System.err.println("Error reading the file: " + e.getMessage());         }     } }

import java.applet.Applet; import java.awt.Button; import java.awt.Color; import java.awt.Graphics; import java.awt.Label; import java.awt.TextField; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class GreatestNumberApplet extends Applet implements ActionListener {     TextField num1Field, num2Field, num3Field;     Label resultLabel;     public void init() {         Label num1Label = new Label("Enter Number 1:");         num1Field = new TextField(10);         Label num2Label = new Label("Enter Number 2:");         num2Field = new TextField(10);         Label num3Label = new Label("Enter Number 3:");         num3Field = new TextField(10);         Button checkButton = new Button("Check Greatest");         checkButton.addActionListener(this);        ...

import java.applet.Applet; import java.awt.Color; import java.awt.Graphics; public class RectangleAndOvalApplet extends Applet {      public void paint(Graphics g) {     // Draw a rectangle with orange color    g.setColor(Color.ORANGE);     g.drawRect(50, 50, 100, 80);     // Draw a right-aligned oval with orange color     g.setColor(Color.ORANGE);     int ovalX = getWidth() - 150; // Right-aligned    int ovalY = 50;     int ovalWidth = 100;     int ovalHeight = 80;     g.fillOval(ovalX, ovalY, ovalWidth, ovalHeight); } }

interface Shape {     double calculateArea(); } interface CircleProperties {     double calculatePerimeter(); } class Circle implements Shape, CircleProperties {     private double radius;     public Circle(double radius) {         this.radius = radius;     }     public double calculateArea() {         return Math.PI * radius * radius;     }     public double calculatePerimeter() {         return 2 * Math.PI * radius;     } } public class CircleCalculator {     public static void main(String[] args) {         Circle myCircle = new Circle(5.0);         System.out.println("Area of the circle: " + myCircle.calculateArea());         System.out.println("Perimeter of the circle: " + myCircle.calculatePerimeter());     } }

import java.util.Scanner; public class MarksProcessor {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("Enter the marks: ");         int marks = scanner.nextInt();         try {             validateMarks(marks);             System.out.println("Marks are within the valid range.");         } catch (MarksOutOfBoundsException e) {             System.out.println("Exception: " + e.getMessage());         }     }     private static void validateMarks(int marks) throws MarksOutOfBoundsException {         if (marks > 100) {             throw new MarksOutOfBoundsException("Marks out of Bound: Marks cannot be greater than 100.");   ...

import java.util.Scanner; public class StringCaseConverter {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("Enter a string: ");         String inputString = scanner.nextLine();         int length = inputString.length();         System.out.println("Length of the string: " + length);         System.out.println("Choose an operation:");         System.out.println("1. Convert to Uppercase");         System.out.println("2. Convert to Lowercase");         int choice = scanner.nextInt();         switch (choice) {             case 1:                 System.out.println("Uppercase: " + inputString.toUpperCase());           ...

import java.util.Scanner; public class GrossSalaryCalculator {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("Enter the basic salary of the employee: ");         double basicSalary = scanner.nextDouble();         System.out.print("Enter the years of service of the employee: ");         int yearsOfService = scanner.nextInt();         double bonus = (basicSalary >= 20000 && yearsOfService >= 5) ? 2000 : 1000;         double ta = 0.10 * basicSalary;         double da = 0.20 * basicSalary;         double hra = 0.05 * basicSalary;         double grossSalary = basicSalary + ta + da + hra + bonus;         System.out.println("Gross Salary of the employee: " + grossSalary);   ...

import java.util.Scanner; public class TableFromMtoN{     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("Enter the range of numbers from m to n for the multiplication table: ");         int m = scanner.nextInt();         int n = scanner.nextInt(); if(m<=n){ int x=m; while(x<=n){         System.out.println("Multiplication table for " + x + ":");         for (int i = 1; i <= 10; i++) {             int result = x * i;             System.out.println(x + " * " + i + " = " + result);         }         x++;        } } else{ System.out.println(" Numbers Range is Wrong,try Again"); } } }

import java.util.*; public class Fib{ public static void main(String args[]){ int a,b,c,n; Scanner s=new Scanner(System.in); System.out.println("How many terms do you want in fibonacci series\n"); n=s.nextInt(); if(n>0){ System.out.println("Enter initial two numbers\n"); a=s.nextInt(); b=s.nextInt(); System.out.println("Fibonacci series of"+n+ "term is:\n"); if(n==1){ System.out.println(a); System.exit(0);} if(n==2){ System.out.println(a+" "+b); System.exit(0);} System.out.print(a+" "+b+" "); int i; for(i=1;i<=n-2;i++){ c=a+b; System.out.print(c+" "); a=b; b=c; } } else{ System.out.println("Wrong number of term"); } } }

import java.util.*; class Factorial{ public static void main(String args[]){ long fact=1,num; int i; Scanner s=new Scanner(System.in); System.out.println("Enter number"); num=s.nextLong(); if(num>0){ for(i=1;i<=num;i++) fact=fact*i; System.out.println("Factorial of"+num+"="+fact); } else{ System.out.println("wrong number"); }}}

import java.util.Scanner; public class GreaterNumberChecker {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("Enter the first number: ");         int number1 = scanner.nextInt();         System.out.print("Enter the second number: ");         int number2 = scanner.nextInt();         int greaterNumber = (number1 > number2) ? number1 : number2;         System.out.println("The greater number is: " + greaterNumber);     } }