diff --git "a/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\350\224\241\345\256\227\351\225\207/Demo01.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\350\224\241\345\256\227\351\225\207/Demo01.java" new file mode 100644 index 0000000000000000000000000000000000000000..2cbdb8afb568bb33f9fdc47de3cf264001677f5b --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\350\224\241\345\256\227\351\225\207/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/\350\224\241\345\256\227\351\225\207/Demo02.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\350\224\241\345\256\227\351\225\207/Demo02.java" new file mode 100644 index 0000000000000000000000000000000000000000..275a4ad55416306c617da8db04c2732746ebc09b --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\350\224\241\345\256\227\351\225\207/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/\350\224\241\345\256\227\351\225\207/Demo03.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\350\224\241\345\256\227\351\225\207/Demo03.java" new file mode 100644 index 0000000000000000000000000000000000000000..54f6c78d89d2430fc2dfa26c9998d21c8e31d12e --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\350\224\241\345\256\227\351\225\207/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 diff --git "a/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\351\231\210\350\203\234\346\235\260/Demo01.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\351\231\210\350\203\234\346\235\260/Demo01.java" new file mode 100644 index 0000000000000000000000000000000000000000..2cbdb8afb568bb33f9fdc47de3cf264001677f5b --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\351\231\210\350\203\234\346\235\260/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/\351\231\210\350\203\234\346\235\260/Demo02.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\351\231\210\350\203\234\346\235\260/Demo02.java" new file mode 100644 index 0000000000000000000000000000000000000000..275a4ad55416306c617da8db04c2732746ebc09b --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\351\231\210\350\203\234\346\235\260/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/\351\231\210\350\203\234\346\235\260/Demo03.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\351\231\210\350\203\234\346\235\260/Demo03.java" new file mode 100644 index 0000000000000000000000000000000000000000..54f6c78d89d2430fc2dfa26c9998d21c8e31d12e --- /dev/null +++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\351\231\210\350\203\234\346\235\260/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