Java初学者心得

学一样东西需要把他当做兴趣来学,才能事半功倍,做什么都要有恒心,初学的时候,可以挑自己感兴趣的先学,不懂的可以暂且跳过,等你学会后面的之后回过头来看,就会发现曾经不会的原来那么简单.

Java初学猜数字游戏代码

```java
import java.util.InputMismatchException;
import java.util.Random;
import java.util.Scanner;

public class CaiShuiZi {
    public static void main(String[] args) {
        Random r = new Random();
        int min = 1;
        int max = 100;
        int count = 0;
        System.out.println("游戏开始");
        int sui = r.nextInt(100) + 1;
        Scanner sc = new Scanner(System.in);
        while (true) {
            System.out.println("请输入一个" + min + "-" + max + "的数字");
            try{

            int cai = sc.nextInt();

            count++;
            if (cai < sui && cai >= min) {
                min = cai;

                System.out.print("太小了，");
            } else if (cai > sui && cai <= max) {
                max = cai;

                System.out.print("太大了，");
            } else if (cai < min || cai > max) {
                System.out.print("你的输入有误，");
            } else if (cai == sui) {
                System.out.println("哦耶。恭喜你只用了" + count + "次就猜对了是否新的游戏y/n");
                String s = sc.next();
                if (s.equals("y")) {
                    System.out.println("新游戏开始");
                    min = 1;
                    max = 100;
                    count = 0;
                    sui = r.nextInt(100) + 1;
                } else {
                    System.out.println("game over");
                    break;
                }
            }
            if (count>=10){
                System.out.println("你太笨了，"+count+"次都猜不对，正确数字是"+sui+"是否开始新的一局y/n");
                String s = sc.next();
                if (s.equals("y")) {
                    System.out.println("新游戏开始");
                    min = 1;
                    max = 100;
                    count = 0;
                    sui = r.nextInt(100) + 1;
                } else {
                    System.out.println("game over");
                    break;
                }
            }
        }catch (InputMismatchException e){
               // sc.skip(".");
                //e.printStackTrace();
                System.out.println("你的输入有误。");
                sc = new Scanner(System.in);
            }
        }
    }

}