//Exercise 1: Arithmetic Operations
public class ArithmeticOperations {
public static void main(String[] args) {
int a = 20;
int b = 5;
int sum = a + b;
int difference = a - b;
int product = a * b;
int quotient = a / b;
int remainder = a % b;
System.out.println("Sum: " + sum);
System.out.println("Difference: " + difference);
System.out.println("Product: " + product);
System.out.println("Quotient: " + quotient);
System.out.println("Remainder: " + remainder);
}
}
//Exercise 2: Swapping Values
public class SwapValues {
public static void main(String[] args) {
int x = 10;
int y = 20;
// Swapping using arithmetic operators
x = x + y;
y = x - y;
x = x - y;
System.out.println("After swapping:");
System.out.println("x = " + x);
System.out.println("y = " + y);
}
}
//Exercise 3: Area and Perimeter of a Rectangle
public class Rectangle {
public static void main(String[] args) {
double length = 15.5;
double width = 10.0;
double area = length * width;
double perimeter = 2 * (length + width);
System.out.println("Area: " + area);
System.out.println("Perimeter: " + perimeter);
}
}
//Exercise 4: Convert Celsius to Fahrenheit
public class TemperatureConversion {
public static void main(String[] args) {
double celsius = 25.0;
double fahrenheit = (celsius * 9/5) + 32;
System.out.println(celsius + " Celsius is equal to " + fahrenheit + " Fahrenheit.");
}
}
//Exercise 5: Simple Interest Calculation
public class SimpleInterest {
public static void main(String[] args) {
double principal = 10000;
double rate = 5; // Interest rate per year in percentage
double time = 3; // Time in years
double simpleInterest = (principal * rate * time) / 100;
System.out.println("Simple Interest: " + simpleInterest);
}
}
//Exercise 6: Calculate the Average
public class AverageCalculator {
public static void main(String[] args) {
double num1 = 8.5;
double num2 = 6.7;
double num3 = 9.2;
double average = (num1 + num2 + num3) / 3;
System.out.println("Average: " + average);
}
}
