Time類的定義

import java.util.Scanner;

class Hour {
	int x, y, z;

	public Hour(int x, int y, int z) {
		this.x = x;
		this.y = y;
		this.z = z;
	}

	public void setHour(int x) {
		if (x > 12 || x < 0) {
			x = 12;
			System.out.print(x + ":");
		} else if (x < 10) {
			System.out.print("0" + x + ":");
		} else {
			System.out.print(x + ":");
		}
	}

	public void setMinue(int y) {
		if (y > 60 || y < 0) {
			y = 0;
			System.out.print("00" + ":");
		} else if (y < 10) {
			System.out.print("0" + y + ":");
		} else {
			System.out.print(y + ":");
		}

	}

	public void setSecond(int z) {
		if (z > 60 || z < 0) {
			z = 0;
			System.out.println("00");
		} else if (z < 10) {
			System.out.print("0" + z);
		} else {
			System.out.println(z);
		}

	}
}

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner cin = new Scanner(System.in);
		while (cin.hasNext()) {
			int hour = cin.nextInt();
			int minue = cin.nextInt();
			int second = cin.nextInt();
			Hour time = new Hour(hour, minue, second);
			time.setHour(hour);
			time.setMinue(minue);
			time.setSecond(second);
		}
		cin.close();
	}

}