问生成一个以Java中的某个数字结尾的随机数

EN

import java.util.Random;
public class RandomFive {
    static Random rand = new Random();
    public static int randomFive() {
        return rand.nextInt(50) * 10 + 5;
    }
    public static int randomFiveFun() {
        int randomFive = 0;
        while ((randomFive = rand.nextInt(500)) % 10 != 5);        
        return randomFive;
    }
    public static int randomFivePresidentJamesKPolck() {
        return (rand.nextInt(50) * 2 + 1 ) * 5;
    }        
    public static void main(String[] args) {
        System.out.printf("Normal: %3d\n", randomFive());
        System.out.printf("Fun:    %3d\n", randomFiveFun());
        System.out.printf("PJKP:   %3d\n", randomFivePresidentJamesKPolck());
    }
}