add

pom.xml

@@ -109,6 +109,14 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>11</source>
+                    <target>11</target>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>

src/main/java/Workspace/project1/myPrint.java

@@ -0,0 +1,30 @@
+package Workspace.project1;
+
+class MyClass{
+
+     void myPrint(int width){
+        if (width % 2 == 0){
+            System.out.println("width should be odd");
+            return;
+        }
+        String star = "*";
+        for (int i = width; i >= 0; i-=2){
+            System.out.println(star.repeat(i));
+        }
+         for (int i = 3; i <= width; i+=2){
+             System.out.println(star.repeat(i));
+         }
+
+    }
+}
+
+public class myPrint {
+    public static void main(String[] args) {
+
+        MyClass myClass = new MyClass();
+        int width  = 5;
+        //int width  = 7;
+        myClass.myPrint(width);
+    }
+
+}

src/main/java/Workspace/workspace3.java

@@ -13,15 +13,6 @@
 public class workspace3 {
     public static void main(String[] args) {
 
-//        // 获取 Java 线程管理 MXBean
-//        ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
-//        // 不需要获取同步的 monitor 和 synchronizer 信息，仅获取线程和线程堆栈信息
-//        ThreadInfo[] threadInfos = threadMXBean.dumpAllThreads(false, false);
-//        // 遍历线程信息，仅打印线程 ID 和线程名称信息
-//        for (ThreadInfo threadInfo : threadInfos) {
-//            System.out.println("[" + threadInfo.getThreadId() + "] " + threadInfo.getThreadName());
-//        }
-
         Solution s = new Solution();
 
         // test 1