diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a1.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a1.java"
new file mode 100644
index 0000000000000000000000000000000000000000..0b020c3f7bcb84c79d636f1350e3814ea38aa56c
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a1.java"
@@ -0,0 +1,28 @@
+import java.util.Scanner;
+import java.util.concurrent.locks.Condition;
+
+public class a1 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scanner = new Scanner(System.in);
+		int sum = 0;
+		int a;
+		for (int i = 0; i < 5; i++) {
+			System.out.println("请输入商品的价格");
+			a = Scanner.nextInt();
+
+			if (a == -1) {
+				break;
+			}
+			sum += a;
+			if (a <= 0) {
+				System.out.println("输出错误");
+				continue;
+			}
+
+		}
+		System.out.println("输出结果" + sum);
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a2.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a2.java"
new file mode 100644
index 0000000000000000000000000000000000000000..42d39b0e177afa476afc42d5203aaaba80d64704
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a2.java"
@@ -0,0 +1,25 @@
+import java.util.Scanner;
+
+public class a2 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+    Scanner Scan=new Scanner(System.in);
+	int sum=0;
+	int a=1;
+	for (int i = 1; i <10; i++) {
+		a=(a+1)*2;
+		sum=a;
+		System.out.println("桃子"+a);
+	}
+	System.out.println("桃子总数"+sum);
+    
+    
+    
+    
+    
+    
+		
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a3.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a3.java"
new file mode 100644
index 0000000000000000000000000000000000000000..c91b540ed6e68f5be41dc1402ed74fd5b22401e6
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a3.java"
@@ -0,0 +1,20 @@
+import java.util.Scanner;
+
+public class a3 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scan = new Scanner(System.in);
+		int a;
+		int b;
+		int c;
+		for (int i = 100; i < 999; i++) {
+			a = i / 100;
+			b = i / 10 % 10;
+			c = i % 10;
+			if (i == a * a * a + b * b * b + c * c * c) {
+				System.out.println("水仙花数：" + i);
+			}
+		}
+	}
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a4.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a4.java"
new file mode 100644
index 0000000000000000000000000000000000000000..39ad401d769f742d1e4d061df7baf3d6f4a1f38d
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a4.java"
@@ -0,0 +1,18 @@
+
+public class a4 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+for (int i = 1; i <=9; i++) {
+	for (int j = 1; j <=9; j++) {
+		
+if (j<=i) {
+	System.out.print(i+"*"+j+"="+(i*j)+"\t");
+}
+	}
+	System.out.println();
+}	
+		
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a5.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a5.java"
new file mode 100644
index 0000000000000000000000000000000000000000..a5031ec971918df7655418bd84eec805c9effffe
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a5.java"
@@ -0,0 +1,28 @@
+import java.util.Scanner;
+
+public class a5 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		// 用户输入正方形边长，用*打印出空心心正方形。
+		// 如：用户输入5，则输出如下图形。
+		// *****
+		// *****
+		// *****
+		// *****
+		// *****
+		Scanner Scan = new Scanner(System.in);
+		System.out.println("请输入正方形的边长");
+		int a = Scan.nextInt();
+		for (int j = 0; j < a; j++) {
+						if (j==0||j==a-1||i==0||i==a-1) {
+							System.out.print(" *");
+						}
+						 else {
+							System.out.print("  ");
+						}
+						
+					}
+		System.out.println();
+	}
+}
\ No newline at end of file
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a6.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a6.java"
new file mode 100644
index 0000000000000000000000000000000000000000..d310ff9229ee9a4824a043a76c74958e0e33ebc3
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a6.java"
@@ -0,0 +1,25 @@
+import java.util.Scanner;
+
+public class a6 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scan = new Scanner(System.in);
+		System.out.println("请输入正方形的边长");
+		int a = Scan.nextInt();
+		for (int i = 0; i < a; i++) {
+			for (int j = 0; j < a; j++) {
+				if (j==0||j==a-1||i==0||i==a-1) {
+					System.out.print("*");
+				}
+				 else {
+					System.out.print("*");
+				}
+				
+			}
+System.out.println();
+		}
+		}
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a7.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a7.java"
new file mode 100644
index 0000000000000000000000000000000000000000..f670e4295496c3a93c7a4b2177b5bb0a5d213b68
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a7.java"
@@ -0,0 +1,20 @@
+import java.util.Scanner;
+
+public class a7 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scan = new Scanner(System.in);
+		
+		int [] a= {19, 28, 37, 46, 50}; 
+		for (int i = 0; i < 5; i++) {
+			System.out.println(a[i]);
+				
+		}
+		
+		
+		
+		
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a8.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a8.java"
new file mode 100644
index 0000000000000000000000000000000000000000..e2a2afc41c1478e82ed0c750a0db30dff66474d1
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a8.java"
@@ -0,0 +1,56 @@
+import java.util.Scanner;
+
+public class a8 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		// 定义1个长度为6的数组
+		int[] arr = new int[6];
+		Scanner sc = new Scanner(System.in);
+
+		for (int x = 0; x < arr.length; x++) {
+			System.out.println("请输入第" + (x + 1) + "个评委给的分数(0-100):");
+			int score = sc.nextInt();
+			arr[x] = score;
+		}
+
+		int max = getMax(arr);
+		int min = getMax(arr);
+		int sum = sum(arr);
+		int avge = (sum - max - min) / (arr.length - 2);
+		System.out.println("平均分是" + avge);
+	}
+
+	public static int getMax(int[] arr) {
+		int max = arr[0];
+
+		for (int x = 1; x < arr.length; x++) {
+			if (max < arr[x]) {
+				max = arr[x];
+			}
+		}
+		return max;
+	}
+
+	public static int getMin(int[] arr) {
+
+		int min = arr[0];
+
+		for (int x = 1; x < arr.length; x++) {
+			if (min > arr[x]) {
+				min = arr[x];
+			}
+		}
+		return min;
+	}
+
+	public static int sum(int[] arr) {
+		int sum = 0;
+		for (int x = 0; x < arr.length; x++) {
+
+			sum += arr[x];
+		}
+		return sum;
+
+	}
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a9.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\273\204\345\277\240\347\243\212/a9.java"
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391