【练习】克拉兹问题

public class Collatz {
    /**
     * Collatz问题
     * @param number
     */
    public static void CollatzQ(int number){    
        String  result = "";
        int tmp = number;
        while(true){
            if(tmp == 1){
                result = result + "Over";
                System.out.println(result);
                break;
            } else if (tmp <= 0){
                System.out.println("The number is error!!!");
                break;
            } else {
                 if (tmp % 2 == 0){
                     tmp = tmp/2;
                 }else {
                     tmp = 3 * tmp + 1;
                 }
                 result = result + tmp + "\t";
            }
        }
        
    }
    
    public static void main(String[] args) {
        for(int num = 0; num < 10; num++){
            Collatz.CollatzQ(num);
        }
    }
}

The number is error!!!
Over
1    Over
10    5    16    8    4    2    1    Over
2    1    Over
16    8    4    2    1    Over
3    10    5    16    8    4    2    1    Over
22    11    34    17    52    26    13    40    20    10    5    16    8    4    2    1    Over
4    2    1    Over
28    14    7    22    11    34    17    52    26    13    40    20    10    5    16    8    4    2    1    Over