expected是期望的意思，在某一个地方期望是一个java class或者interface，但是你没写，或者写的不是interface或者class 你看看你定义类的时候关键字是不是有错误 public interface 注意拼写 expected :被期盼意思就是告诉你 这里 需要定义为类或接口就是你的编译里只可以有class或者interface,不可以两个都有。。。
就是没有类或者接口，也就是需要的包你没有import进去 还有一种可能就是你把类的名字写错了 继承，被继承你把完整的错误贴出来
java.lang.Exception: java.lang.IncompatibleClassChangeError:找到接口org.apache.hadoop.mapreduce.TaskAtt...
AI代码解释 Process:com.kronos.router,PID:4643java.lang.RuntimeException:Unable to instantiate activity ComponentInfo{com.kronos.router/com.kronos.sample.MainActivity}:java.lang.ClassNotFoundException:Didn't findclass"com.kronos.sample.MainActivity"on path:DexPathList[[zip file"/data/app/com.kronos.r...
HelloWorld.java:34: error: class, interface, or enum expected }写回答 关注 1回答 慕函数6145303 2018-04-15 11:20:04 已采纳 //34行:错误:类、接口或enum,, import java.util.Arrays; public class HelloWorld { //完成 main 方法 public static void main(String[] args) { HelloWorld hello=...
public class OperateDemo { //public, class首字母小写public static void main(String[] args) { //然后我看你命令行提示main拼错了int x = 4270;x = x/1000*1000;System.out.println(x);}}
@Test(expected = NoClassDefFoundError.class)publicvoidgivenInitErrorInClass_whenloadClass_thenNoClassDefFoundError() { NoClassDefFoundErrorExample sample=newNoClassDefFoundErrorExample(); sample.getClassWithInitErrors(); } 4. 解决 有时,诊断和修复这两个问题可能非常耗时。这两个问题的主要原因是类文件(在类路径...
(Method.java:498) at javax.faces.FactoryFinder.injectAndPostConstruct(FactoryFinder.java:415) ... 44 more Caused by: java.lang.IncompatibleClassChangeError: Found interface org.jboss.as.web.common.WebInjectionContainer, but class was expected at org.jboss.as.jsf.injection.MyFacesInjectionProvider....
JUnit uses AssertionErrors for indicating that a test is failing. You have to call assert methods before you set expectations of the ExpectedException rule, if they should be handled by the framework. E.g. the following test fails because of the assertTrue statement. ...
javac --release 8 com/baeldung/MajorMinorApp.java Now we can run our code on a Java 8 or higher JRE. 4. Eclipse IDE Now that we understand the error and the general approach to correcting it, let’s take what we’ve learned and see how we can apply it when working in the Eclipse...