View Compilation Error

660629_0_0_10944\Main.java:8: 需要 <标识符>
char []x,[]y;
         ^
660629_0_0_10944\Main.java:12: 需要 ';'
    m=x.size()-1,n=y.size()-1;
                ^
660629_0_0_10944\Main.java:13: 需要 ']'
    int c[m+1][n+1];
          ^
3 错误