017-001-001

Conditional Branching: Grade Checker Program

Easy

Problem Description

conditional branching: Grade Checker Program

Learning Objective: Understand how to control program flow with conditional branching using if-else if-else statements

In this problem, you will create a program that reads an integer score (0-100) from standard input, uses if-else if-else statements to determine the grade (A through F) based on the score, and displays the result to standard output.

Create program to determine grade based on score. Learn how to control program flow by executing different processes based on conditions.

Understanding with Concrete Examples

Example 1: Excellent Grade (95 points)

Input: 95
Condition Check: 95 >= 90 → true (determined by first condition)
Grade Result: "A"
Output: "Grade Result:" "Score: 95" "Grade: A"

Example 2: Middle Grade (75 points)

Input: 75
Condition Check: 75 >= 90 → false, 75 >= 80 → false, 75 >= 70 → true
Grade Result: "C" (determined by 3rd condition)
Output: "Grade Result:" "Score: 75" "Grade: C"

Example 3: Boundary Value (exactly 90 points)

Input: 90
Condition Check: 90 >= 90 → true (boundary value included)
Grade Result: "A"
Output: "Grade Result:" "Score: 90" "Grade: A"

Input

Line 1: Score (integer, 0-100)

Output

Grade Result:
Score: [score]
Grade: [grade]
```java

Grade criteria:
- 90 or above: A
- 80 or above and below 90: B
- 70 or above and below 80: C
- 60 or above and below 70: D
- Below 60: F

**Key Point**: <a href="https://javadrill.tech/problems/005/001">if statement</a> conditions are evaluated **in order from top to bottom**. The first condition that becomes true has its block executed, and remaining conditions are skipped.

Test Cases

※ Output examples follow programming industry standards

Input:

Expected Output:

Grade Result:
Score: 95
Grade: A

Input:

Expected Output:

Grade Result:
Score: 75
Grade: C

Input:

Expected Output:

Grade Result:
Score: 90
Grade: A

Input:

Expected Output:

Grade Result:
Score: 59
Grade: F

❌ Some tests failed

❌ エラー発生

Your Solution

Current Mode:● My Code

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    // Write your code here

    sc.close();
  }
}

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