View Compilation Error

0_0_6336397_3794\Main.java:1: class exe1 is public, should be declared in a file named exe1.java
public class exe1 {
       ^
0_0_6336397_3794\Main.java:7: cannot find symbol
symbol  : class Scanner
location: class exe1
		Scanner sc=new Scanner(System.in);
		^
0_0_6336397_3794\Main.java:7: cannot find symbol
symbol  : class Scanner
location: class exe1
		Scanner sc=new Scanner(System.in);
		               ^
3 errors