From d1968994d9dd5976f4d93621aa85b4cb5569f159 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?22=20=E5=91=A8=E5=85=83=E4=BF=8A=E4=B8=B4?= <1654759188@qq.com> Date: Fri, 7 Apr 2023 21:23:13 +0800 Subject: [PATCH] =?UTF-8?q?=E6=96=B9=E6=B3=95=E4=BD=9C=E4=B8=9A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...50\345\205\203\344\277\212\344\270\264.md" | 91 +++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 "22 \345\221\250\345\205\203\344\277\212\344\270\264/20230407 \346\226\271\346\263\225\344\275\234\344\270\232\345\221\250\345\205\203\344\277\212\344\270\264.md" diff --git "a/22 \345\221\250\345\205\203\344\277\212\344\270\264/20230407 \346\226\271\346\263\225\344\275\234\344\270\232\345\221\250\345\205\203\344\277\212\344\270\264.md" "b/22 \345\221\250\345\205\203\344\277\212\344\270\264/20230407 \346\226\271\346\263\225\344\275\234\344\270\232\345\221\250\345\205\203\344\277\212\344\270\264.md" new file mode 100644 index 0000000..782b687 --- /dev/null +++ "b/22 \345\221\250\345\205\203\344\277\212\344\270\264/20230407 \346\226\271\346\263\225\344\275\234\344\270\232\345\221\250\345\205\203\344\277\212\344\270\264.md" @@ -0,0 +1,91 @@ +```java +import java.util.Arrays; +import java.util.Scanner; + +public class Main { + public static void main(String[] args) { + System.out.println("最小值和最大值分别是" + Arrays.toString(num())); + } +// 1,定义一个方法,接收一个数组,返回该数组的最大值和最小值;在主方法中打印最大,最小值 + + public static int[] num() { + int[] aa = new int[5]; + Scanner sc = new Scanner(System.in); + System.out.println("请输入5个数字来加入一个数组(中间用空格隔开)"); + for (int i = 0; i < aa.length; i++) { + aa[i] = sc.nextInt(); + } + int min = aa[0]; + int max = aa[0]; + for (int i = 0; i < aa.length; i++) { + if (min > aa[i]) { + min = aa[i]; + } + if (max < aa[i]) { + max = aa[i]; + } + } + return new int[]{min, max}; + } +} + +``` + +```java +import java.util.Scanner; + +public class Main1 { + //2,定义一个方法,接收长和宽,返回一个矩形的面积,在主方法中,打印这个面积 + public static void main(String[] args) { + int v= mianji(); + System.out.println("面积是:"+v); + } + public static int mianji() { + Scanner sca = new Scanner(System.in); + System.out.println("请输入长:"); + int a=sca.nextInt(); + System.out.println("请输入宽:"); + int b= sca.nextInt(); + if (a<=0 || b<=0){ + System.out.println("tm打错了"); + mianji(); + } + int c=a*b; + return c; + } +} + +``` + +```java +import java.util.Scanner; + +public class Main2 { + public static void main(String[] args) { + // 3,利用方法重载,定义多个同名方法,通过接收一个不同类型的参数, + // 方法体里用扫描器接收一个对应类型的值,最后将该输入的值返回,在主方法中,输出该值。 + + System.out.println("我就输出一个"+jk(null)+"吧"); + } + public static int jk(int b){ + Scanner sc =new Scanner(System.in); + System.out.println("请输入一个东西"); + int a=sc.nextInt(); + return a; + } + public static String jk(String b){ + Scanner sc =new Scanner(System.in); + System.out.println("请输入一个东西"); + String a=sc.next(); + return a; + } + public static double jk(double b){ + Scanner sc =new Scanner(System.in); + System.out.println("请输入一个东西"); + double a=sc.nextDouble(); + return a; + } +} + +``` + -- Gitee