diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo1.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo1.java"
new file mode 100644
index 0000000000000000000000000000000000000000..665ac4d18eb6e530aad1b8a12c1777d7eb679801
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo1.java"
@@ -0,0 +1,23 @@
+package bakabka;
+
+import java.util.Scanner;
+
+public class Demo1 {
+
+	public static void main(String[] args) {
+		Scanner scanner = new Scanner (System.in);
+		int sum=0;
+		
+		for(int x=0;x<100;x++) {
+			System.out.println("请输入您的金额：");
+			int a=scanner.nextInt();
+			if(a<=0) {
+				System.out.println("统计结束");
+				break;
+			}
+			sum+=a;
+		}
+		System.out.println("您的金额总额为"+sum);
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo2.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo2.java"
new file mode 100644
index 0000000000000000000000000000000000000000..253a03220fe319f252e7e2feb3079c37c1f6bcc3
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo2.java"
@@ -0,0 +1,15 @@
+package bakabka;
+
+public class Demo2 {
+
+	public static void main(String[] args) {
+		int a=1;
+		
+		for(int x=1;x<10;x++) {
+			a=(a+1)*2;
+			System.out.println("第"+(10-x)+"天，有"+a+"个桃子");
+		}
+		System.out.println(a);
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo3.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo3.java"
new file mode 100644
index 0000000000000000000000000000000000000000..0b4db95d9deeaf311ccb9c4763999dfd81db3261
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo3.java"
@@ -0,0 +1,24 @@
+package bakabka;
+
+public class Demo3 {
+
+	public static void main(String[] args) {
+		int a;
+		int b;
+		int c;
+		int y;
+		
+		for(int x=100;x<1000;x++) {
+			a=x/100;
+			b=(x%100)/10;
+			c=x%10;
+			y=(a*a*a)+(b*b*b)+(c*c*c);
+			if(x==y) {
+				System.out.println(x);
+			}
+		}
+			
+
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo4.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo4.java"
new file mode 100644
index 0000000000000000000000000000000000000000..83f420b7b6a4fd271738e7eab077f7e62e81b18e
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo4.java"
@@ -0,0 +1,20 @@
+package bakabka;
+
+public class Demo4 {
+
+	public static void main(String[] args) {
+		
+		for(int x=1;x<10;x++) {
+			for(int y=1;y<10;y++) {
+				if(y>x) {
+					
+				}else {
+					System.out.print(x+"*"+y+"="+(x*y)+"\t");
+				}
+			}
+			System.out.println( );
+		}
+
+	}
+
+}
diff --git "a/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo5.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo5.java"
new file mode 100644
index 0000000000000000000000000000000000000000..ba03b4bdf584cc87106b9e3012978c3108daa9b1
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo5.java"
@@ -0,0 +1,21 @@
+package bakabka;
+
+import java.util.Scanner;
+
+public class Demo5 {
+
+	public static void main(String[] args) {
+		Scanner scanner = new Scanner (System.in);
+		System.out.println("请输入一个数字");
+		int x=scanner.nextInt();
+		
+		for(int y=1;x>=y;y++) {
+			for(int z=1;x>=z;z++) {
+				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\237\246\345\244\251\347\277\224/Demo6.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo6.java"
new file mode 100644
index 0000000000000000000000000000000000000000..20d7496578d5e5f13e9b9addb01d3ecb53b22523
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo6.java"
@@ -0,0 +1,25 @@
+package bakabka;
+
+import java.util.Scanner;
+
+public class Demo6 {
+
+	public static void main(String[] args) {
+		Scanner scanner = new Scanner (System.in);
+		System.out.println("请输入一个数字");
+		int x=scanner.nextInt();
+		
+		for(int y=0;x>y;y++) {
+			for(int z=0;x>z;z++) {
+				if(z==0||z==x-1||y==0||y==x-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\237\246\345\244\251\347\277\224/Demo7.java" "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo7.java"
new file mode 100644
index 0000000000000000000000000000000000000000..d942561cfa363a5fb90f8617303eceba548db855
--- /dev/null
+++ "b/Java\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/\351\237\246\345\244\251\347\277\224/Demo7.java"
@@ -0,0 +1,10 @@
+package bakabka;
+
+public class Demo7 {
+
+	public static void main(String[] args) {
+		// TODO 自动生成的方法存根
+
+	}
+
+}