From fa928c33ce59beb811488b5d6fa638bd7a121fa7 Mon Sep 17 00:00:00 2001 From: "@luoshitian" <908631923@qq.com> Date: Tue, 5 Jan 2021 22:55:11 +0800 Subject: [PATCH] first commit --- .../Demo01.java" | 26 ++++++++++ .../Demo02.java" | 35 ++++++++++++++ .../Demo03.java" | 47 +++++++++++++++++++ 3 files changed, 108 insertions(+) create mode 100644 "java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo01.java" create mode 100644 "java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo02.java" create mode 100644 "java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo03.java" diff --git "a/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo01.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo01.java" new file mode 100644 index 0000000..2cbdb8a --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo01.java" @@ -0,0 +1,26 @@ +package lession; + +import java.util.Scanner; + +public class Demo01 { + + public static void main(String[] args) { + + Scanner scanner =new Scanner(System.in); + System.out.println("请输入n的值"); + int n=scanner.nextInt(); + System.out.println("请再输入m的值"); + int m=scanner.nextInt(); + System.out.println("最终结果为："+num(n,m)); + + } + + public static int num(int n, int m) { + int sum=1; + for (int i = 1; i <=n; i++) { + sum*=m; + } + return sum; + } + +} diff --git "a/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo02.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo02.java" new file mode 100644 index 0000000..275a4ad --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo02.java" @@ -0,0 +1,35 @@ +package lession; + +import java.util.Random; +import java.util.Scanner; + +public class Demo02 { + + public static void main(String[] args) { + Scanner scanner =new Scanner(System.in); + Random random =new Random(); + int a[]=new int[20]; + for (int i = 0; i < 20; i++) { + a[i]=random.nextInt(10)+1; + } + System.out.println("请输入一个值"); + int b=scanner.nextInt(); + System.out.println("出现了："+num(b,a)); + + } + + public static int num(int d,int[] a) { + int c; + int sum=0; + for (int i = 0; i < 20; i++) { + c=a[i]; + System.out.print(c+"\t"); + if (c==d) { + sum++; + } + } + System.out.println(); + return sum; + } + +} diff --git "a/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo03.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo03.java" new file mode 100644 index 0000000..54f6c78 --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\275\227\344\273\225\345\244\251/Demo03.java" @@ -0,0 +1,47 @@ +package lession; + +import java.util.Random; + +public class Demo03 { + + public static void main(String[] args) { + ; + Random random =new Random(); + int a[]=new int[10]; + System.out.println("改变前"); + for (int i = 0; i < 10; i++) { + a[i]=random.nextInt(100)+1; + System.out.print(a[i]+"\t"); + } + int max=a[0]; + int min=a[0]; + for (int i = 1; i < 10; i++) { + if (maxa[i]) { + min=a[i]; + } + } + System.out.println(); + num(max,min,a); +} + + public static void num(int max, int min,int[]a) { + int d; + d=a[0]; + a[0]=max; + max=d; + int g; + g=a[9]; + a[9]=min; + min=g; + System.out.println("改变后"); + for (int i = 0; i < 10; i++) { + System.out.print(a[i]+"\t"); + } + + } +} \ No newline at end of file -- Gitee