Java for循环问题

Question

public CountS(int r;int s,int t){
    Scanner in = new Scanner(System.in);
    System.out.println("请输入数据：");
    for（int i=0;i<r; i++){
        for (int j=0;j<s;j++) {
            for (int k = 0; k < t; k++) a[i][j][k] = in.nextDouble();
        }
    }
}

为啥这里参数r会报错

Answer 1

public CountS(int r;int s,int t)。。。。。

int r,