Basic Java Programs

 

public class BasicJavaProgram { public static void main(String[] args) { // Variables int num1 = 10; int num2 = 5; // Arithmetic Operators int sum = num1 + num2; int difference = num1 - num2; int product = num1 * num2; int quotient = num1 / num2; int remainder = num1 % num2; // Comparison Operators boolean isEqual = num1 == num2; boolean isNotEqual = num1 != num2; boolean isGreater = num1 > num2; boolean isLess = num1 < num2; boolean isGreaterOrEqual = num1 >= num2; boolean isLessOrEqual = num1 <= num2; // Logical Operators boolean logicalAnd = (num1 > 0) && (num2 < 10); boolean logicalOr = (num1 > 0) || (num2 < 10); boolean logicalNot = !(num1 == num2); // Conditional Statements if (num1 > num2) { System.out.println("num1 is greater than num2"); } else if (num1 < num2) { System.out.println("num1 is less than num2"); } else { System.out.println("num1 is equal to num2"); } // Looping Statements System.out.println("Printing numbers from 1 to 5:"); for (int i = 1; i <= 5; i++) { System.out.print(i + " "); } System.out.println(); // Move to the next line // Switch Statement int dayOfWeek = 3; String dayName; switch (dayOfWeek) { case 1: dayName = "Sunday"; break; case 2: dayName = "Monday"; break; case 3: dayName = "Tuesday"; break; case 4: dayName = "Wednesday"; break; case 5: dayName = "Thursday"; break; case 6: dayName = "Friday"; break; case 7: dayName = "Saturday"; break; default: dayName = "Invalid day"; } System.out.println("Day of the week: " + dayName); } }