View Compilation Error

0_0_38732486_23999\Main.java:1: 错误: 需要class, interface或enum
public void main() {
       ^
0_0_38732486_23999\Main.java:3: 错误: 需要class, interface或enum
            while (scanner.hasNext()) {
            ^
0_0_38732486_23999\Main.java:5: 错误: 需要class, interface或enum
                while (t-- > 0) {
                ^
0_0_38732486_23999\Main.java:7: 错误: 需要class, interface或enum
                    a=scanner.nextInt();
                    ^
0_0_38732486_23999\Main.java:8: 错误: 需要class, interface或enum
                    b=scanner.nextInt();
                    ^
0_0_38732486_23999\Main.java:9: 错误: 需要class, interface或enum
                    System.out.println(a+b);
                    ^
0_0_38732486_23999\Main.java:10: 错误: 需要class, interface或enum
                }
                ^
7 个错误