第一次提交

Main.java

@@ -0,0 +1,5 @@
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}

Transform4381.java

@@ -0,0 +1,27 @@
+import java.util.Scanner;
+
+public class Transform4381 {
+
+//此代码不实现界面
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.print("请输入输入数字: ");
+        String input = scanner.nextLine();
+
+        System.out.print("请输入从进制 (2, 8, 10, 16): ");
+        int fromBase = scanner.nextInt();
+
+        System.out.print("请输入到进制 (2, 8, 10, 16): ");
+        int toBase = scanner.nextInt();
+
+        try {
+            int number = Integer.parseInt(input, fromBase);
+            String result = Integer.toString(number, toBase);
+            System.out.println("转换结果: " + result);
+        } catch (NumberFormatException e) {
+            System.out.println("输入的数字在指定的进制中无效。");
+        }
+    }
+}