diff --git "a/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Circle.java" "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Circle.java"
new file mode 100644
index 0000000000000000000000000000000000000000..c59e1d2aa7e588e588dcc000771d76894207ebc0
--- /dev/null
+++ "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Circle.java"
@@ -0,0 +1,26 @@
+package com.md.lesson8;
+
+import java.util.Scanner;
+
+public class Circle {
+	public static void getCir(double r) {
+		double cirPer = 3.14*2*r;
+		
+		double cirArea = 3.14*r*r;
+		
+		System.out.println("圆的周长是：" + cirPer);
+		System.out.println("圆的面积是：" + cirArea);
+		
+	}
+
+	public static void main(String[] args) {
+		Scanner s = new Scanner(System.in);
+		
+		System.out.println("请输入半径：");
+		double r = s.nextDouble();
+		
+		getCir(r);
+
+	}
+
+}
diff --git "a/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Cube.java" "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Cube.java"
new file mode 100644
index 0000000000000000000000000000000000000000..eec07d45e70f46ed0310846762570d7e49d967fe
--- /dev/null
+++ "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Cube.java"
@@ -0,0 +1,30 @@
+package com.md.lesson8;
+
+import java.util.Scanner;
+
+public class Cube {
+	
+	public static long cube(long x,long y,long z) {
+		long rx = x*x*x;
+		long ry = y*y*y;
+		long rz = z*z*z;
+		
+		long result = rx + ry + rz;
+		return result;
+	}
+
+	public static void main(String[] args) {
+		Scanner s = new Scanner(System.in);
+		
+		System.out.println("请输入第一个数：");
+		int x = s.nextInt();
+		System.out.println("请输入第二个数：");
+		int y = s.nextInt();
+		System.out.println("请输入第三个数：");
+		int z = s.nextInt();
+		
+		long result = cube(x,y,z);
+		System.out.println("最终结果是" + result);
+	}
+
+}
diff --git "a/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Factorial.java" "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Factorial.java"
new file mode 100644
index 0000000000000000000000000000000000000000..28758f282ea4b0ecf85964af256febf3f0e31b38
--- /dev/null
+++ "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Factorial.java"
@@ -0,0 +1,31 @@
+package com.md.lesson8;
+
+import java.util.Scanner;
+
+public class Factorial {
+	public static void fac(long a) {
+		long result3 = 0;
+		for(int c = 1;c <= a;c++) {
+			long result1 = 1;
+			long result2 = 0;
+			for(int b = 1;b <= c;b++) {
+				result1 *= b;
+				result2 += result1;
+			}
+			System.out.println(result2);
+			result3 += result2;
+		}
+		System.out.println("最终结果是；" + result3);
+	}
+
+	public static void main(String[] args) {
+		Scanner s = new Scanner(System.in);
+		
+		System.out.println("请输入一个数：");
+		long a = s.nextLong();
+		
+		fac(a);
+
+	}
+
+}
diff --git "a/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Figure.java" "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Figure.java"
new file mode 100644
index 0000000000000000000000000000000000000000..5025bb2378a790d9e429219437b42f0839aa21b5
--- /dev/null
+++ "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Figure.java"
@@ -0,0 +1,51 @@
+package com.md.lesson8;
+
+import java.util.Scanner;
+
+public class Figure {
+	public static double tArea() {
+		Scanner s = new Scanner(System.in);
+		System.out.println("请输入底：");
+		double bottom = s.nextDouble();
+		
+		System.out.println("请输入高：");
+		double height = s.nextDouble();
+		
+		double tArea = (bottom*height)/2;
+		
+		System.out.println("三角形面积是：" + tArea);
+		return tArea;
+	}
+	public static double sArea(double l,double w) {
+		double result = l*w ;
+		System.out.println("长方形的面积是：" + result);
+		
+		return result;
+	}
+	public static double rArea(double l) {
+		double result = l*l;
+		return result;
+	}
+	
+	public static void main(String[] args) {
+		Scanner s = new Scanner(System.in);
+		
+		double result1 = tArea();
+		System.out.println("输入长方形的长：");
+		double l = s.nextDouble();
+		System.out.println("输入长方形的宽：");
+		double w = s.nextDouble();
+		double result2 = sArea(l,w);
+		
+		System.out.println("输入正方形的边长：");
+		double l2 = s.nextDouble();
+		
+		double result3 = rArea(l2);
+		
+		double resultFinal = result1 + result2 + result3;
+		System.out.println("正方形的面积是：" + result3);
+		System.out.println("面积之和是:" + resultFinal);
+		
+	}
+
+}
diff --git "a/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Power.java" "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Power.java"
new file mode 100644
index 0000000000000000000000000000000000000000..3253b9585cee32cdc181c22869c077e82453d20b
--- /dev/null
+++ "b/Java\347\254\254\344\270\203\346\254\241\344\275\234\344\270\232/\351\231\210\346\200\235\351\224\220\347\254\254\345\205\253\346\254\241\344\275\234\344\270\232/Power.java"
@@ -0,0 +1,32 @@
+package com.md.lesson8;
+
+import java.util.Scanner;
+
+public class Power {
+	public static void power(int m,int n) {
+		int result = m;
+		for(int i = 1;i <= n;i++) {
+			if(i == 1) {
+				result = m;
+			}else {
+				result = result*m;
+			}
+		}
+		System.out.println("m的n次幂是：" + result);
+		
+	}
+
+	public static void main(String[] args) {
+		Scanner s = new Scanner(System.in);
+		
+		System.out.println("请输入底数");
+		int m = s.nextInt();
+		
+		System.out.println("请输入指数");
+		int n = s.nextInt();
+		
+		power(m,n);
+
+	}
+
+}