If Else

In this problem, you will learn about control flow statements using Java if and if...else statements with the help of examples.

In computer programming, we use the if statement to control the flow of the program. For example, if a certain condition is met, then run a specific block of code. Otherwise, run another code.

An if-else statement has the following logical flow:

For example:

 class Main {
  public static void main(String[] args) {

    int number = 0;

    // checks if number is greater than 0
    if (number > 0) {
      System.out.println("The number is positive.");
    }

    // checks if number is less than 0
    else if (number < 0) {
      System.out.println("The number is negative.");
    }

    // if both condition is false
    else {
      System.out.println("The number is 0.");
    }
  }
}


Output

The number is 0.

In the above example, we are checking whether the number is positive, negative, or zero.

Here, we have two condition expressions:

• number > 0 - checks if the number is greater than 0
• number < 0 - checks if the number is less than 0

Here, the value of the number is 0. So both the conditions evaluate to false. Hence the statement inside the body of else is executed.

Task:

Given an integer M perform the following conditional actions:

• If M is multiple of 3 and 5 then print "Good Number" (without quotes).
• If M is only multiple of 3 and not of 5 then print "Bad Number" (without quotes).
• If M is only multiple of 5 and not of 3 then print "Poor Number" (without quotes).
• If M doesn't satisfy any of the above conditions then print "-1" (without quotes).