输入任意数排序

date: 2018/1/18 14:39:47

2018年JAVA基础节课考试—本人错误集合

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package android.xiaolan.paixu.tools;

import java.util.Arrays;
import java.util.Scanner;
	
public class Main {

	static Scanner sc = new Scanner(System.in);
	static int a, b, c, max, mix;

	public static void main(String[] args) {

		
		Run1();
		Run2();
		Run3();
		
	}

	private static void Run3() {
		System.out.println("第一个数");
		a = sc.nextInt();
		System.out.println("第二个数");
		b = sc.nextInt();
		System.out.println("第三个数");
		c = sc.nextInt();
		// 拿到最大值
		if (a > b) {
			max = a;
		} else {
			max = b;
		}
		if (max > c) {
		} else {
			max = c;
		}
		// 拿到最小值
		if (a < b) {
			mix = a;
		} else {
			mix = b;
		}
		if (mix < c) {
		} else {
			mix = c;
		}

		// 输出最小
		System.out.println(mix);

		// 输出中间的值
		if (max == a) {

			if (b > c) {
				System.out.println(b);
			} else {
				System.out.println(c);
			}

		}
		// 输出中间的值
		if (max == b) {

			if (a > c) {
				System.out.println(a);
			} else {
				System.out.println(c);
			}
		}
		// 输出中间的值
		if (max == c) {

			if (a > b) {
				System.out.println(a);
			} else {
				System.out.println(b);
			}
		}
		// 输出最大值
		System.out.println(max);
	}

	private static void Run2() {
		System.out.println("第一个数");
		a = sc.nextInt();
		System.out.println("第二个数");
		b = sc.nextInt();
		System.out.println("第三个数");
		c = sc.nextInt();
		for (int i = 0; i < 2; i++) {
			if (a > b) {
				int max = a;
				a = b;
				b = max;
			}
			if (b > c) {

				int max = b;
				b = c;
				c = max;
			}
		}
		System.out.println(a + "\n" + b + "\n" + c);
	}

	private static void Run1() {
		int a[] = new int[3];
		for (int i = 0; i < a.length; i++) {
			System.out.println("输入第" + (i + 1) + "个数");
			// 循环输入值 赋值数组
			a[i] = sc.nextInt();
		}
		// 排序
		Arrays.sort(a);
		for (int i = 0; i < a.length; i++) {
			// 输出排序
			System.out.println(a[i]);
			}
		}
	}

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