View Compilation Error

0_0_2366506_2286\Main.java:1: 需要为 class、interface 或 enum
main(a,b){while(~scanf("%d%d",&a,&b))printf("%d\n",a+b);}
^
0_0_2366506_2286\Main.java:1: 需要为 class、interface 或 enum
main(a,b){while(~scanf("%d%d",&a,&b))printf("%d\n",a+b);}
                                                        ^
2 错误