package com.test171.day02;
import java.util.Scanner;
// 功能：switch练习，成绩等级判断
public class T6_SwitchTest {
public static void main(String[] args) {
// 从键盘上输入成绩
System.out.println("请输入您的成绩");
Scanner sn = new Scanner(System.in);
int a = sn.nextInt();
// 成绩在0-100之间
if (a >= 0 && a <= 100) {
switch (a / 10) {
case 10:
case 9:
System.out.println("A");
break;
case 8:
System.out.println("B");
break;
case 7:
System.out.println("C");
break;
case 6:
System.out.println("D");
break;
default:
System.out.println("E");
}
} else {
System.out.println("您输入的成绩有误");
}
}
}
if-else判断
package com.test171.day02;
import java.util.Scanner;
public class T5_IfElseTest4 {
public static void main(String[] args) {
Scanner sn = new Scanner(System.in);
System.out.println("请输入一个数值");
int a = sn.nextInt();
if (a == 1) {
System.out.println("A");
} else if (a == 2) {
System.out.println("B");
} else if (a == 3) {
System.out.println("C");
} else {
System.out.println("Z");
}
}
}
Switch case判断
package com.test171.day02;
public class SwitchTest {
public static void main(String[] args) {
int a = 4;
switch (a) {
case 1:// 符号是冒号
System.out.println("A");
break;
case 2:// 符号是冒号
System.out.println("B");
break;
default:
System.out.println("Z");
}
}
}
,
