View Compilation Error

0_0_26600987_21335\Main.java:2: 错误: 需要class, interface或enum
public static void main(String[] args);
              ^
0_0_26600987_21335\Main.java:3: 错误: 需要class, interface或enum
    int a,b;
    ^
0_0_26600987_21335\Main.java:4: 错误: 需要class, interface或enum
    Scanner kb = new Scanner(System.in);{
    ^
0_0_26600987_21335\Main.java:4: 错误: 需要class, interface或enum
    Scanner kb = new Scanner(System.in);{
                                        ^
0_0_26600987_21335\Main.java:7: 错误: 需要class, interface或enum
        b = kb.nextInt();
        ^
0_0_26600987_21335\Main.java:8: 错误: 需要class, interface或enum
        System.out.println(a + b);
        ^
0_0_26600987_21335\Main.java:9: 错误: 需要class, interface或enum
    }
    ^
7 个错误