再到Windows -> Preferances -> Java -> Installed JREs 切换一下默认jdk(换一下勾选,我这里有个jdk7和jdk8) ,Apply 等待一下progress,它应该在构建, 然后再把默认jdk切换回来,感叹号消失项目就可以运行了。
import java.util.*;public class Java3 {public static void main(String[] args) {System.out.println("Input n:");Scanner input = new Scanner(System.in);int n = Integer.parseInt(input.next());int i;i = n * n;int[] a = new int[2]; //错误1：int 数组a未初始化queen(...
@Override public void callHello() { throw new Error("Unresolved compilation problems: Hello cannot be resolved to a type."); } However, code generation works fine, if instead driven from maven. richard-melvinmentioned this issueApr 3, 2021 ...
看到源代码里边有build.xml,遂搜索; 按照《在Eclipse中通过build.xml导入工程》操作; 有些开源工程是用ant编译的,那么这时候有时可以通过导入工程中的build.xml来将工程导入到Eclipse中,步骤如下: 选择菜单File->New->Other…->Java->Java Project from Existing Ant Buildfile,如下图: 提示Specified buildfile d...
\impl\TaskServiceImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zjrc.ssc.manager.service.impl.TaskServiceImpl]: Constructor threw exception; nested exception is java.lang.Error: Unresolved compilation problems...
10 935 runs +10 923 10 704 ✅ +10 692 231 💤 +231 0 ❌ ±0 Results for commit145d3d3. ± Comparison against base commit3f973e8. ♻️ This comment has been updated with latest results....
2017-05-31 23:09 −问题描述 Exception in thread "main" java.lang.Error: Unresolved compilation problems: The type java.lang.CharSequence cannot be re... 百里登峰 0 2290 The type java.lang.CharSequence cannot be resolved. It is indirectly referenced from required .class ...
这是Java中经典的问题,在面试中也经常被问起.很多书提到要重载hashCode()和equals()两个方法才能实现自...
A "Project"is a compilation unit. An application may consist of several Eclipse projects but typically is a single project. Eclipse IDE for ModusToolbox™ Project Management For general information about how the Eclipse IDE for ModusToolbox™ creates and implements projects, see the “Getting ...
让我的Eclipse插件在Windows环境中工作有困难。我创建了一个使用外部jars的Eclipse插件。我能够在我的MacBook (macOS Catalina10.15)上将插件安装到Eclipse (macOS Catalina10.15),方法是右键单击项目,然后将Export>Deployable插件和Fragments>Install安装到主机repository>Finish中。主机存储库的路径是/Users/username/eclipse-...