package 第四章;
//filename:App4_2.java
public class App4_2 //定義一個類，名字為App4_2
{
public static void main(String[] args)
{
int testScore=86; //定義一個整型常量testScore=86
char grade; //定義一個字元型grade
if(testScore>=90){ //判斷testScore是否大於等於90
grade='A'; //是則grade=A
}else if (testScore>=80){ //否則判斷testSroce是否大於等於80
grade='B'; //是則grade=B
}else if (testScore>=70){
grade='C';
}else if (testScore>=60){
grade='D';
}else{
grade='E';
}
System.out.println("評定成績為"+grade); //輸出grade
}
}