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View Compilation Error

0_0_24377491_4374\Main.java:1: 错误: 类main是公共的, 应在名为 main.java 的文件中声明
public class main {
       ^
0_0_24377491_4374\Main.java:4: 错误: 找不到符号
		Scanner sc = new Scanner(System.in); 
		^
  符号:   类 Scanner
  位置: 类 main
0_0_24377491_4374\Main.java:4: 错误: 找不到符号
		Scanner sc = new Scanner(System.in); 
		                 ^
  符号:   类 Scanner
  位置: 类 main
3 个错误


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