java: 类型java.awt.List不带有参数

在IDEA集成开发环境中,如果遇到‘java:类型java.awt.List不带有参数’的错误,通常是由于导入了错误的List包。正确做法应将‘importjava.awt.List;’改为‘importjava.util.List;’,这样可以确保使用到的是Java集合框架中的List接口。

在IDEA中可能会报错:

java: 类型java.awt.List不带有参数

如上所示,这个错误是因为导入List包时导错了
解决方法:

import java.awt.List;

改为

import java.util.List;

打包成exe后报错Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: java/sql/SQLException at com.example.swing.workflow.WorkflowPersistence.listWorkflows(WorkflowPersistence.java:136) at com.example.swing.MainFrame.updateSavedWorkflowsMenu(MainFrame.java:224) at com.example.swing.MainFrame.createMenuBar(MainFrame.java:166) at com.example.swing.MainFrame.initializeComponents(MainFrame.java:64) at com.example.swing.MainFrame.<init>(MainFrame.java:49) at com.example.swing.MainApplication.lambda$main$0(MainApplication.java:21) at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714) at java.base/java.security.AccessController.doPrivileged(AccessController.java:400) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90) Caused by: java.lang.ClassNotFoundException: java.sql.SQLException at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:528) ... 19 more
最新发布
12-05
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