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ตัวอย่าง โค้ดโปรแกรมคำนวณเกรดที่ใช้ภาษาจาวา (JAVA) ในการพัฒนา โดยรับค่าของคะแนนผ่านทางคีย์บอร์ด แล้วนำไปตรวจสอบตามเงื่อนไข โดยใช้ if – elseif
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/**
* DekDEV.com
*/
import java.util.Scanner;
public class GPA {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Input your score : ");
float score = sc.nextFloat();
if(score < 0 || score > 100){
System.out.println("Error input score 0 - 100");
}
else if(score >= 80){
System.out.println("Score = "+score+" , You Grade : A");
}
else if(score >= 75){
System.out.println("Score = "+score+" , You Grade : B+");
}
else if(score >= 70){
System.out.println("Score = "+score+" , You Grade : B");
}
else if(score >= 65){
System.out.println("Score = "+score+" , You Grade : C+");
}
else if(score >= 60){
System.out.println("Score = "+score+" , You Grade : C");
}
else if(score >= 55){
System.out.println("Score = "+score+" , You Grade : D+");
}
else if(score >= 50){
System.out.println("Score = "+score+" , You Grade : D");
}
else{
System.out.println("Score = "+score+" , You Grade : F");
}
System.out.println("---------------------------------------");
System.out.println("Powered by dekdev.com");
}
}

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