diff --git "a/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2401.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2401.java"
new file mode 100644
index 0000000000000000000000000000000000000000..86b921f4097803e4869cab6ad30b5c36d32923b5
--- /dev/null
+++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2401.java"
@@ -0,0 +1,27 @@
+package 练习;
+
+import java.util.Scanner;
+
+public class 练习1 {
+
+	public static void main(String[] args) {
+		Scanner scanner = new Scanner(System.in);
+
+		while (true) {
+			System.out.println("给x赋值");
+			int x = scanner.nextInt();
+			System.out.println("给y赋值");
+			int y = scanner.nextInt();
+			System.out.println("给z赋值");
+			int z = scanner.nextInt();
+			int s = duZhi(x,y,z);
+			System.out.println("结果为" + s);
+		}
+	}
+
+	public static int duZhi(int a, int b, int c) {
+		int s = a*a*a + b*b*b + c*c*c;
+		return s;
+	}
+
+}
diff --git "a/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2402.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2402.java"
new file mode 100644
index 0000000000000000000000000000000000000000..74470d81a9304b74e1f5909d45b79d76afd37cfa
--- /dev/null
+++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2402.java"
@@ -0,0 +1,33 @@
+package 练习;
+
+import java.util.Scanner;
+
+public class 练习2 {
+
+	public static void main(String[] args) {
+		Scanner scanner = new Scanner (System.in);
+		int m;
+		int n;
+		System.out.println("请输入数字");
+		m = scanner .nextInt();
+		System.out.println("请输入次方");
+		n = scanner .nextInt();
+		int  num=1;
+		
+		
+		for (int i = 0; i < n; i++) {
+		
+			System.out.println(num=num*m );
+		}		
+		
+		
+		
+		
+		
+		}
+			
+			
+		
+	
+
+}
\ No newline at end of file
diff --git "a/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2403.java" "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2403.java"
new file mode 100644
index 0000000000000000000000000000000000000000..4013ab9c6d0a1601ee94734511af07c9369cd261
--- /dev/null
+++ "b/java\347\254\254\345\215\201\346\254\241\344\275\234\344\270\232/\347\216\213\351\200\270\351\243\236/\347\273\203\344\271\2403.java"
@@ -0,0 +1,31 @@
+package 练习;
+
+import java.util.Random;
+import java.util.Scanner;
+
+public class 练习3 {
+
+	public static void main(String[] args) {
+		// 在主函数中产生20个0-10之间的随机数，
+		//将这20个随机数存入数组，
+		//并通过函数计算某个数在这些随机数中出现的次数
+		//（这“某个数”是在主函数中由用户输入的）
+		Scanner scanner = new Scanner (System.in);
+		Random random = new Random();
+		int [] num = new int [20];
+		for (int i = 0; i < 20; i++) {
+			num[i]=random.nextInt(10)+1;
+			System.out.println();
+			
+		}
+		System.out.println("请输入数值");
+		int a = scanner.nextInt();
+		int b=0;
+		for (int i = 0; i < num.length; i++) {
+			if(a==num[i]);
+			b++;
+		}
+		
+	}
+
+}