java - 切换程序失败

Question

我编写这个程序是为了练习使用多个程序(我正在使用 eclipse)。而且我无法让 switch 语句正常工作:

Eclipse 一直告诉我 token 大小写存在语法错误，需要断言？

public class MultiClass {
 public static void main(String args[]) {
  MultiClassTwo MCT = new MultiClassTwo();
  MultiClassThree MCTT = new MultiClassThree();
  MultiClass4 MCF = new MultiClass4();

  int determiner;
  determiner = 1;

  Switch(determiner) {
   case 1:
    MCT.simpleMessage();
    break;
   case 2:
    MCTT.simpleMessage();
    break;
   case 3:
    MCF.simpleMessage();
    break;
   default:
    System.out.println("This is the first class.");
  }
 }
}

这里是其他类的单独文件:

public class MultiClassTwo {
 public void simpleMessage() {
  System.out.println("This is the second class.");
 }
}

public class MultiClassThree {
 public void simpleMessage() {
  System.out.println("This is the third class.");
 }
}


public class MultiClass4 {
 public void simpleMessage() {
  System.out.println("This is the fourth class.");
 }
}

Answer 1

关键字switch应该以小写的's'开头