Java程序设计求出岁数

public class Age {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Age a = new Age();
        a.fun();
    }
    
    private int fun(){
        for(int i = 0;i<60;i++){

            if((i*i*i)/1000>0 && (i*i*i*i)/100000>0){
                String a1 = (i*i*i)+"";
                String a2 = (i*i*i*i)+"";
                String[] str = (a1+a2).split("");
                
                if(panduan(str)){
                    System.out.println("这个十位数是"+(a1+a2));
                    System.out.println(i);
                    return 1;
                }
            }
        }
        return -1;
    }
    
    private boolean panduan(String[] str){
        for(int i = 0;i<10;i++){
            for(int j = i+1;j<10;j++){
                if(str[i] == str[j]){
                    return false;
                }
            }
        }
        return true;
    }
}