diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/~$\347\256\227\346\234\272\345\255\230\345\202\250\345\215\225\345\205\203.docx" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/~$\347\256\227\346\234\272\345\255\230\345\202\250\345\215\225\345\205\203.docx"
new file mode 100644
index 0000000000000000000000000000000000000000..682f107f70d85c6bc80566216dd7b4d65bdef299
Binary files /dev/null and "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/~$\347\256\227\346\234\272\345\255\230\345\202\250\345\215\225\345\205\203.docx" differ
diff --git "a/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo01.java" "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo01.java"
new file mode 100644
index 0000000000000000000000000000000000000000..1165029379c391fbe89f10023cf9d6d4753f64ad
--- /dev/null
+++ "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo01.java"
@@ -0,0 +1,46 @@
+import java.util.Scanner;
+
+public class Demo01 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scanner=new Scanner(System.in);
+		while (true) {
+			System.out.println("请输入第一位数");
+			int a=Scanner.nextInt();
+			System.out.println("请输入算法");
+			String b=Scanner.next();
+			System.out.println("请输入第二位数");
+			int c=Scanner.nextInt();
+			switch (b) {
+			case "+":
+				 System.out.println("相加后的值为"+jiafa(a,c));
+				break;
+			case "-":
+				 System.out.println("相减后的值为"+jian(a,c));
+				break;
+			case"*":
+				 System.out.println("相乘后的值为"+chen(a,c));
+				break;
+			case "/":
+				 System.out.println("相除后的值为"+chu(a,c));
+				break;
+			default:
+				break;
+			}	
+		}
+	}
+
+	private static int jiafa(int a, int c) {
+			return a+c;
+	}
+	private static int jian(int a, int c) {
+			return a-c;
+	}
+	private static int chen(int a, int c) {
+		return a*c;
+}
+	private static int chu(int a, int c) {
+		return a/c;
+}
+}
diff --git "a/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo03.java" "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo03.java"
new file mode 100644
index 0000000000000000000000000000000000000000..8dc54055372813e3cc0c0bfebb5f72536a66143d
--- /dev/null
+++ "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo03.java"
@@ -0,0 +1,16 @@
+import java.util.Scanner;
+
+public class Demo03 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scanner=new Scanner(System.in);
+		for (int i = 1; i <= 4; i++) {
+			for (int j = 1; j <= i*2-1; j++) {
+				System.out.print("*");
+			}
+			System.out.println(" ");
+		}
+	}
+
+}
diff --git "a/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo04.java" "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo04.java"
new file mode 100644
index 0000000000000000000000000000000000000000..e56966e49140781f211b0d4e2677272758162e65
--- /dev/null
+++ "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo04.java"
@@ -0,0 +1,16 @@
+import java.util.Scanner;
+
+public class Demo04 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scanner=new Scanner(System.in);
+		for (int i = 4; i >=1; i--) {
+			for (int j = 1; j <= i*2-1; j++) {
+				System.out.print("*");
+			}
+			System.out.println(" ");
+		}
+	}
+
+}
diff --git "a/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo05.java" "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo05.java"
new file mode 100644
index 0000000000000000000000000000000000000000..ca1a8a4b4d624c0ae9de40a11f796aa4da718e23
--- /dev/null
+++ "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo05.java"
@@ -0,0 +1,20 @@
+import java.util.Scanner;
+
+public class Demo05 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scanner=new Scanner(System.in);
+		System.out.print("请输入数值n");
+		int a=Scanner.nextInt();
+		int sum=0;
+		int s=0;
+		for (int i = 2; i <=a; i++) {
+			for (int j = 1; j <=i; j++) {
+				sum+=i*j;
+			}
+		}
+		System.out.print("n阶乘值为："+sum);
+	}
+
+}
diff --git "a/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo06.java" "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo06.java"
new file mode 100644
index 0000000000000000000000000000000000000000..ac81a96b03d3512273a931deed9aca616745e17f
--- /dev/null
+++ "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo06.java"
@@ -0,0 +1,68 @@
+import java.util.Scanner;
+
+public class Demo06 {
+
+	private static final String Scenner = null;
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner Scanner=new Scanner(System.in);
+		
+		System.out.println("1.正方形面积为：");
+		System.out.println("2.长方形面积为：");
+		System.out.println("3.三角形面积为：");
+		System.out.println("4.圆形的面积为：");
+		System.out.print("请输入要计算面积的图形");
+		String a=Scanner.next();
+		switch (a) {
+		case "1":
+			System.out.print("请输入边长");
+			int b=Scanner.nextInt();
+			 System.out.println("正方形的面积为"+zfx(b));
+			break;
+		case "2":
+			System.out.print("请输入长");
+			int c=Scanner.nextInt();
+			System.out.print("请输入宽");
+			int d=Scanner.nextInt();
+			 System.out.println("长方形的面积为"+cfx(c,d));
+			break;
+		case"3":
+			System.out.print("请输入底");
+			int e=Scanner.nextInt();
+			System.out.print("请输入高");
+			int f=Scanner.nextInt();
+			 System.out.println("三角形的面积为"+sjx(e,f));
+			break;
+		case "4":
+			System.out.print("请输入半径");
+			int g=Scanner.nextInt();
+			 System.out.println("圆形的面积为"+yx(g));
+			break;
+		default:
+			break;
+		}	
+	}
+
+	private static float yx(int g) {
+		// TODO Auto-generated method stub
+		float h =(float)3.14;
+		return g*g*h;
+	}
+
+	private static int sjx(int e, int f) {
+		// TODO Auto-generated method stub
+		return e*f/2;
+	}
+
+	private static int cfx(int c, int d) {
+		// TODO Auto-generated method stub
+		return c*d;
+	}
+
+	private static int zfx(int b) {
+		// TODO Auto-generated method stub
+		return b*b;
+	}
+
+}
diff --git "a/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo2.java" "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo2.java"
new file mode 100644
index 0000000000000000000000000000000000000000..d146c7a9c52621c79fe273a3493406db72e31525
--- /dev/null
+++ "b/Java\347\254\254\344\271\235\346\254\241\344\275\234\344\270\232/\345\217\266\351\231\210\350\276\211/Demo2.java"
@@ -0,0 +1,25 @@
+import java.util.Scanner;
+import java.util.concurrent.ForkJoinPool;
+
+import javax.swing.text.StyledEditorKit.ForegroundAction;
+
+public class Demo2 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		int []a= {65,98,27,34,56,14};
+		int max=changle(a);
+	}
+
+	private static int changle(int[] a) {
+		int max=a[0];
+	for (int i = 1; i < a.length; i++) {
+		if(max<a[i]){
+			max=a[i];
+		}
+	}
+	System.out.print("最大值为："+max);
+	return max;
+	}
+	
+}