编写一个考试成绩分类程序

程序源代码：

import java.util.Scanner;

public class NumberTest {
public static void main(String args[])
{
System.out.println("请输入分数");
Scanner scanner=new Scanner(System.in);
String str=scanner.nextLine();
int num = 0;
boolean isNum = false;
try {
num = Integer.parseInt(str);
isNum = true;
}
catch (Exception e) {
}
if (isNum)
{
if(num>0&&num<=100)
{
if(num<60)
{
System.out.print("不及格");
}
else if(num>=60&&num<70)
{
System.out.print("及格");
}
else if(num>=70&&num<80)
{
System.out.print("中");
}
else if(num>80&&num<90)
{
System.out.print("良");
}
else if(num>=90&&num<=100)
{
System.out.print("优");
}
}
else
{
System.out.print("请输入正确的数字");
}
}
else
{
System.out.println("请输入正确的数字");
}
}
}

运行结果截图：

转载于:https://www.cnblogs.com/hyluckydog/p/4966718.html