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View Compilation Error

0_0_36640076_12316\Main.java:1: 错误: 类Mymain是公共的, 应在名为 Mymain.java 的文件中声明
public class Mymain {
       ^
0_0_36640076_12316\Main.java:4: 错误: 找不到符号
        Scanner in = new Scanner(System.in);
        ^
  符号:   类 Scanner
  位置: 类 Mymain
0_0_36640076_12316\Main.java:4: 错误: 找不到符号
        Scanner in = new Scanner(System.in);
                         ^
  符号:   类 Scanner
  位置: 类 Mymain
3 个错误


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