View Compilation Error

0_0_30381785_14545\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args){
              ^
0_0_30381785_14545\Main.java:3: 错误: 需要class, interface或enum
    while(sc.hasNextint(){
    ^
0_0_30381785_14545\Main.java:5: 错误: 需要class, interface或enum
     int b=sc.nextInt();
     ^
0_0_30381785_14545\Main.java:6: 错误: 需要class, interface或enum
     System.out.print(a+b);
     ^
0_0_30381785_14545\Main.java:7: 错误: 需要class, interface或enum
    }
    ^
5 个错误