diff --git "a/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo1.java" "b/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo1.java"
new file mode 100644
index 0000000000000000000000000000000000000000..6494c6b47b409f3da871c2f762b129746296ae2f
--- /dev/null
+++ "b/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo1.java"
@@ -0,0 +1,39 @@
+import java.util.Random;
+import java.util.Scanner;
+
+public class Demo1 {
+
+	public static void main(String[] args) {
+		Scanner scanner = new Scanner(System.in);
+		int arr[][] = new int[5][6];
+
+		for (int i = 0; i < arr.length; i++) {
+
+			System.out.println("请输入第" + (i + 1) + "个员工的编号");
+			arr[i][0] = scanner.nextInt();
+
+			System.out.println("请输入第" + (i + 1) + "个员工忘打卡数");
+			arr[i][1] = scanner.nextInt();
+
+			System.out.println("请输入第" + (i + 1) + "个员工迟到数");
+			arr[i][2] = scanner.nextInt();
+
+			System.out.println("请输入第" + (i + 1) + "个员工早退数");
+			arr[i][3] = scanner.nextInt();
+
+			System.out.println("请输入第" + (i + 1) + "个员工矿工数");
+			arr[i][4] = scanner.nextInt();
+			
+			arr[i][5] = (arr[i][1] * 10 + arr[i][2] * 20 + arr[i][3] * 20 + arr[i][4] * 100);
+		}
+		System.out.println("*******************本月考情信息**********************");
+		System.out.println("员工编号\t忘打卡\t迟到\t早退\t旷工\t总罚款(单位元)");
+		for (int i = 0; i < arr.length; i++) {
+			for (int j = 0; j < arr.length; j++) {
+				System.out.print(arr[i][j] + "\t");
+			}
+			System.out.println(arr[i][5]);
+			System.out.println();
+		}
+	}
+}
diff --git "a/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo2.java" "b/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo2.java"
new file mode 100644
index 0000000000000000000000000000000000000000..8624a296a0ca1c0d66ad03ee1c7ba2ead5129d34
--- /dev/null
+++ "b/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo2.java"
@@ -0,0 +1,15 @@
+public class Demo2 {
+
+	public static void main(String[] args) {
+			//已知一个二维数组 = {{11, 22, 33}, {33, 44, 55}};
+			//遍历该数组，取出所有元素并打印
+		int [] [] arr = {{11, 22, 33}, {33, 44, 55}};
+		for (int i = 0; i < 2; i++) {
+			for (int j = 0; j < 3; j++) {
+				System.out.println(arr[i][j]);
+			}
+			
+		}
+	}
+
+}
diff --git "a/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo3.java" "b/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo3.java"
new file mode 100644
index 0000000000000000000000000000000000000000..527d0d5c60f3936068da49aef873ad7ad2426d61
--- /dev/null
+++ "b/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo3.java"
@@ -0,0 +1,22 @@
+
+public class Demo3 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+//		 某公司季度和月份统计的数据如下：单位(万元)
+//			第一季度：22,66,44
+//			第二季度：77,33,88
+//			第三季度：25,45,65
+//			第四季度：11,66,99
+		int[][] arr = { { 22, 66, 44 }, { 77, 33, 88 }, { 25, 45, 65 }, { 11, 66, 99 } };
+		int a = 0;
+		for (int i = 0; i < arr.length; i++) {
+			for (int j = 0; j < arr[i].length; j++) {
+				System.out.println(arr[i][j]);
+				a += arr[i][j];
+			}
+		}
+		System.out.println(a);
+	}
+
+}
diff --git "a/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo4.java" "b/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo4.java"
new file mode 100644
index 0000000000000000000000000000000000000000..55c38dc89de0b03c29db54842b586294b7a9305f
--- /dev/null
+++ "b/\344\272\214\347\273\264\346\225\260\347\273\204/\346\235\216\346\230\214\345\256\235/Demo4.java"
@@ -0,0 +1,38 @@
+package shuzu.com;
+import java.util.Scanner;
+
+public class Demoo4 {
+		//一家贸易公司有四位销售员，每位销售员负责销售四件商品，编写一个程序
+	public static void main(String[] args) {
+		//明细表包括每类产品的销售总数，以及每位销售员销售的产品数量占总销售的百分比。
+		//销售员N销售的产品A的百分比=（销售员N售出的产品A的销售量/总销售量）*100
+		//总销售量指各类产品销售量的总和（使用二维数组）
+		Scanner scanner = new Scanner(System.in);
+		double [][] arr= new double[4][7]; 
+		for (int i = 0; i < arr.length; i++) {
+			System.out.println("输入第"+(i+1)+"位员工编号");
+			arr[i][0]=scanner.nextInt();
+			System.out.println("输入第"+(i+1)+"位员工A产品的销售数量");
+			arr[i][1]=scanner.nextInt();
+			System.out.println("输入第"+(i+1)+"位员工B产品的销售数量");
+			arr[i][2]=scanner.nextInt();
+			System.out.println("输入第"+(i+1)+"位员工C产品的销售数量");
+			arr[i][3]=scanner.nextInt();
+			System.out.println("输入第"+(i+1)+"位员工D产品的销售数量");
+			arr[i][4]=scanner.nextInt();
+			
+			arr[i][5]=arr[i][1]+arr[i][2]+arr[i][3]+arr[i][4];
+			arr[i][6]=arr[i][1]/(arr[i][1]+arr[i][2]+arr[i][3]+arr[i][4])*100;
+		}
+		System.out.println("*******************商品明细**********************");
+		System.out.println("员工编号\t A产品数量\tB产品数量\tC产品数量\tD产品数量\t销售总数\tA物品百分比");
+		for (int i = 0; i < arr.length; i++) {
+			for (int j = 0; j < arr[i].length; j++) {
+				System.out.print(arr[i][j]+"\t"+"\t");		
+			}
+			System.out.println();
+		}
+
+	}
+
+}