java  猜数字游戏

javac Guess.java 
java Guess



import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Random;

public class Guess {

	public static void main(String[] args) throws Exception {
		int magic, guess, counter = 0;
		String reply;
		Random rand = new Random();
		final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		do {
			counter = 0;
			magic = rand.nextInt(100) + 1;
			do {
				System.out.print("Please guess a magic number:");
				guess = readInt(br);
				while (guess <= 0 || guess > 100) {
					System.out.print("please input a int number 1~100 :");
					guess = readInt(br);
				}
				counter++;
				if (guess > magic)
					System.out.print("Wrong!Too big!\n");
				else if (guess < magic)
					System.out.print("Wrong!Too small!\n");
				else
					System.out.print("Right!\n");
			} while (guess != magic && counter < 10);
			System.out.print("counter = " + counter + "\n");
			System.out.print("The magic is " + magic + "\n");
			System.out.print("Do you want to continue(Y/N or y/n)?");

			reply = br.readLine();

		} while (reply != null && reply.equalsIgnoreCase("Y"));

	}

	private static int readInt(BufferedReader br) {
		try {
			String str = br.readLine();
			return Integer.parseInt(str);
		} catch (Throwable e) {
			return 0;
		}
	}

}


 C语言猜数字