View Compilation Error

0_0_9102791_29712\Main.java:14: 非法字符： \65288
public int retAdd（int num1,int num2）{return num1+num2;}
                 ^
0_0_9102791_29712\Main.java:14: 需要 <标识符>
public int retAdd（int num1,int num2）{return num1+num2;}
                           ^
0_0_9102791_29712\Main.java:14: 非法字符： \65289
public int retAdd（int num1,int num2）{return num1+num2;}
                                   ^
3 错误