Calculator

padmini/Calculator

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+import java.awt.*;
+import java.awt.event.*;
+class Calculator implements ActionListener
+{
+ Frame f=new Frame();
+ Label l1 = new Label("First Number");
+ Label l2 = new Label("Second Number");
+ Label l3 = new Label("Result");
+ TextField t1= new TextField();
+ TextField t2= new TextField();
+ TextField t3= new TextField();
+ Button b1 = new Button("Add");
+ Button b2 = new Button("Sub");
+ Button b3 = new Button("Mul");
+ Button b4 = new Button("Div");
+ Button b5 = new Button("Cancel");
+ Calculator()
+ {
+ l1.setBounds(50,100,100,20);
+ l2.setBounds(50,140,100,20);
+ l3.setBounds(50,180,100,20);
+ t1.setBounds(200,100,150,20);
+ t2.setBounds(200,140,150,20);
+ t3.setBounds(200,180,150,20);
+ b1.setBounds(50,250,70,20);
+ b2.setBounds(110,250,70,20);
+ b3.setBounds(170,250,70,20);
+ b4.setBounds(230,250,70,20);
+ b5.setBounds(290,250,70,20);
+ f.add(l1);
+ f.add(l2);
+ f.add(l3);
+ f.add(t1);
+ f.add(t2);
+ f.add(t3);
+ f.add(b1);
+ f.add(b2);
+ f.add(b3);
+ f.add(b4);
+ f.add(b5);
+ b1.addActionListener(this);
+ b2.addActionListener(this);
+ b3.addActionListener(this);
+ b4.addActionListener(this);
+ b5.addActionListener(this);
+ f.setLayout(null);
+ f.setVisible(true);
+ f.setSize(400,350);
+}
+public void actionPerformed(ActionEvent e)
+{
+ int n1 = Integer.parseInt(t1.getText());
+ int n2 = Integer.parseInt(t2.getText());
+ if(e.getSource()==b1)
+ {
+  t3.setText(String.valueOf(n1+n2));
+ }
+ if(e.getSource()==b2)
+ {
+  t3.setText(String.valueOf(n1-n2));
+ }
+ if(e.getSource()==b3)
+ {
+  t3.setText(String.valueOf(n1*n2));
+ }
+ if(e.getSource()==b4)
+ {
+  t3.setText(String.valueOf(n1/n2));
+ }
+ if(e.getSource()==b5)
+ {
+  System.exit(0);
+ }
+}
+public static void main(String [] args)
+{
+  new Calculator();
+ }
+}

padmini/Number Guessing/Number Guessing Game

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+import java.util.*;
+import java.util.Random;
+public class NumberGuessing {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        Random random = new Random();
+        System.out.println("Welcome to the Number Guessing Game!");
+        System.out.println("I have selected a number between 1 and 100. Try to guess it!");
+        int maxAttempts = 10;
+        int secretNumber = random.nextInt(100) + 1;
+        int attempts = 0;
+        boolean guessedCorrectly = false;
+        while (attempts < maxAttempts) {
+            System.out.print("Enter your guess (between 1 and 100): ");
+            int guess = scanner.nextInt();
+            attempts++;
+            if (guess == secretNumber) {
+                guessedCorrectly = true;
+                break;
+            } else if (guess < secretNumber) {
+                System.out.println("Too low! Try again.");
+            } else {
+                System.out.println("Too high! Try again.");
+            }
+        }
+
+        if (guessedCorrectly) {
+            System.out.println("Congratulations! You've guessed the number " + secretNumber + " correctly in " + attempts + " attempts!");
+        } else {
+            System.out.println("Sorry, you've exceeded the maximum number of attempts. The correct number was: " + secretNumber);
+        }
+
+        scanner.close();
+    }
+}

padmini/SimpleCalculator/Calculator

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+import java.awt.*;
+import java.awt.event.*;
+class Calculator implements ActionListener
+{
+ Frame f=new Frame();
+ Label l1 = new Label("First Number");
+ Label l2 = new Label("Second Number");
+ Label l3 = new Label("Result");
+ TextField t1= new TextField();
+ TextField t2= new TextField();
+ TextField t3= new TextField();
+ Button b1 = new Button("Add");
+ Button b2 = new Button("Sub");
+ Button b3 = new Button("Mul");
+ Button b4 = new Button("Div");
+ Button b5 = new Button("Cancel");
+ Calculator()
+ {
+ l1.setBounds(50,100,100,20);
+ l2.setBounds(50,140,100,20);
+ l3.setBounds(50,180,100,20);
+ t1.setBounds(200,100,150,20);
+ t2.setBounds(200,140,150,20);
+ t3.setBounds(200,180,150,20);
+ b1.setBounds(50,250,70,20);
+ b2.setBounds(110,250,70,20);
+ b3.setBounds(170,250,70,20);
+ b4.setBounds(230,250,70,20);
+ b5.setBounds(290,250,70,20);
+ f.add(l1);
+ f.add(l2);
+ f.add(l3);
+ f.add(t1);
+ f.add(t2);
+ f.add(t3);
+ f.add(b1);
+ f.add(b2);
+ f.add(b3);
+ f.add(b4);
+ f.add(b5);
+ b1.addActionListener(this);
+ b2.addActionListener(this);
+ b3.addActionListener(this);
+ b4.addActionListener(this);
+ b5.addActionListener(this);
+ f.setLayout(null);
+ f.setVisible(true);
+ f.setSize(400,350);
+}
+public void actionPerformed(ActionEvent e)
+{
+ int n1 = Integer.parseInt(t1.getText());
+ int n2 = Integer.parseInt(t2.getText());
+ if(e.getSource()==b1)
+ {
+  t3.setText(String.valueOf(n1+n2));
+ }
+ if(e.getSource()==b2)
+ {
+  t3.setText(String.valueOf(n1-n2));
+ }
+ if(e.getSource()==b3)
+ {
+  t3.setText(String.valueOf(n1*n2));
+ }
+ if(e.getSource()==b4)
+ {
+  t3.setText(String.valueOf(n1/n2));
+ }
+ if(e.getSource()==b5)
+ {
+  System.exit(0);
+ }
+}
+public static void main(String [] args)
+{
+  new Calculator();
+ }
+}

padmini/Temperature Converter/Temperature Converter Program

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+import java.util.Scanner;
+
+public class Temp {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Welcome to Temperature Converter!");
+        System.out.println("Enter the temperature scale you want to convert from:");
+        System.out.println("1. Celsius");
+        System.out.println("2. Fahrenheit");
+        System.out.println("3. Kelvin");
+
+        System.out.print("Enter your choice (1/2/3): ");
+        int choiceFrom = scanner.nextInt();
+
+        System.out.print("Enter the temperature value: ");
+        double temperature = scanner.nextDouble();
+
+        double convertedTemperature = 0;
+
+        switch (choiceFrom) {
+            case 1:
+                System.out.println("Convert Celsius to:");
+                System.out.println("1. Fahrenheit");
+                System.out.println("2. Kelvin");
+                System.out.print("Enter your choice (1/2): ");
+                int choiceToCelsius = scanner.nextInt();
+                if (choiceToCelsius == 1) {
+                    convertedTemperature = celsiusToFahrenheit(temperature);
+                    System.out.println(temperature + " Celsius = " + convertedTemperature + " Fahrenheit");
+                } else if (choiceToCelsius == 2) {
+                    convertedTemperature = celsiusToKelvin(temperature);
+                    System.out.println(temperature + " Celsius = " + convertedTemperature + " Kelvin");
+                } else {
+                    System.out.println("Invalid choice!");
+                }
+                break;
+            case 2:
+                System.out.println("Convert Fahrenheit to:");
+                System.out.println("1. Celsius");
+                System.out.println("2. Kelvin");
+                System.out.print("Enter your choice (1/2): ");
+                int choiceToFahrenheit = scanner.nextInt();
+                if (choiceToFahrenheit == 1) {
+                    convertedTemperature = fahrenheitToCelsius(temperature);
+                    System.out.println(temperature + " Fahrenheit = " + convertedTemperature + " Celsius");
+                } else if (choiceToFahrenheit == 2) {
+                    convertedTemperature = fahrenheitToKelvin(temperature);
+                    System.out.println(temperature + " Fahrenheit = " + convertedTemperature + " Kelvin");
+                } else {
+                    System.out.println("Invalid choice!");
+                }
+                break;
+            case 3:
+                System.out.println("Convert Kelvin to:");
+                System.out.println("1. Celsius");
+                System.out.println("2. Fahrenheit");
+                System.out.print("Enter your choice (1/2): ");
+                int choiceToKelvin = scanner.nextInt();
+                if (choiceToKelvin == 1) {
+                    convertedTemperature = kelvinToCelsius(temperature);
+                    System.out.println(temperature + " Kelvin = " + convertedTemperature + " Celsius");
+                } else if (choiceToKelvin == 2) {
+                    convertedTemperature = kelvinToFahrenheit(temperature);
+                    System.out.println(temperature + " Kelvin = " + convertedTemperature + " Fahrenheit");
+                } else {
+                    System.out.println("Invalid choice!");
+                }
+                break;
+            default:
+                System.out.println("Invalid choice!");
+        }
+
+        scanner.close();
+    }
+
+    public static double celsiusToFahrenheit(double celsius) {
+        return (celsius * 9 / 5) + 32;
+    }
+
+    public static double celsiusToKelvin(double celsius) {
+        return celsius + 273.15;
+    }
+
+    public static double fahrenheitToCelsius(double fahrenheit) {
+        return (fahrenheit - 32) * 5 / 9;
+    }
+
+    public static double fahrenheitToKelvin(double fahrenheit) {
+        return (fahrenheit + 459.67) * 5 / 9;
+    }
+
+    public static double kelvinToCelsius(double kelvin) {
+        return kelvin - 273.15;
+    }
+
+    public static double kelvinToFahrenheit(double kelvin) {
+        return (kelvin * 9 / 5) - 459.67;
+    }
+}