Else–if ladder in Java - Mini Project: Build & Apply

Else-if ladder

📖 Scenario: You are creating a simple program that assigns a grade based on a student's score.

🎯 Goal: Build a Java program that uses an else-if ladder to print the correct grade for a given score.

📋 What You'll Learn

Create an integer variable called score with the exact value 85.

Create an integer variable called passingScore with the exact value 50.

Use an else-if ladder with the variable score to assign grades:

90 and above is Grade A

80 to 89 is Grade B

70 to 79 is Grade C

60 to 69 is Grade D

50 to 59 is Grade E

Below 50 is Fail.

Print the grade using System.out.println.

💡 Why This Matters

🌍 Real World

Grading systems in schools or colleges use similar logic to assign letter grades based on numeric scores.

💼 Career

Understanding conditional statements like else-if ladders is essential for decision-making in software development.

1

Create the score variable

Create an integer variable called score and set it to 85.

Java

# Your code here

Need a hint?

Use int score = 85; inside the main method.

2

Create the passingScore variable

Add an integer variable called passingScore and set it to 50 below the score variable.

Java

public class Main {
    public static void main(String[] args) {
        int score = 85;
        // Your code here
    }
}

Need a hint?

Declare int passingScore = 50; just after score.

3

Write the else-if ladder for grades

Write an else-if ladder using the variable score to assign grades as follows: if score >= 90, print Grade A; else if score >= 80, print Grade B; else if score >= 70, print Grade C; else if score >= 60, print Grade D; else if score >= 50, print Grade E; else print Fail. Use System.out.println inside each block.

Java

public class Main {
    public static void main(String[] args) {
        int score = 85;
        int passingScore = 50;
        // Your else-if ladder here
    }
}

Need a hint?

Use if, multiple else if, and a final else to cover all score ranges.

4

Print the grade result

Run the program to print the grade for the score 85. The output should be Grade B.

Java

public class Main {
    public static void main(String[] args) {
        int score = 85;
        int passingScore = 50;
        if (score >= 90) {
            System.out.println("Grade A");
        } else if (score >= 80) {
            System.out.println("Grade B");
        } else if (score >= 70) {
            System.out.println("Grade C");
        } else if (score >= 60) {
            System.out.println("Grade D");
        } else if (score >= 50) {
            System.out.println("Grade E");
        } else {
            System.out.println("Fail");
        }
        // Program prints the grade
    }
}

Need a hint?

Run the program and check the console output.