简介:idea报错“Static methods in interface require -target:jvm-1.8” 如题,在 idea 中跑 java 、scala 混编代码时,出现上面的错误。 问题的原因很明显是 idea 中的 jdk 版本设置有问题,针对性作如下排查: 检查项目的 java 版本 在File->Project Settings中,检查 检查idea的 java 版本 在File->Settings中,...
使用web3j构建项目时,提示如下错误: Error:(21,16) Static methodsininterface require-target:jvm-1.8Web3j.build(httpService) 在idea中选择scala编译时,带上参数-target:jvm-1.8 或者在pom文件中 1) 如果使用 maven-scala-plugin 这个插件编译的,则如下 <arg>-target:jvm-1.8</arg> <plugin><groupId>org....
Before learning the Static Methods in Interface let’s go back to JDK 7 and older versions, and memorize the scope of a static method. We will come to a conclusion that Static Methods could be defined in a class, abstract class, final class but not in an interface. However, from JDK ...
Error:(21, 16) Static methods in interface require -target:jvm-1.8 Web3j.build(httpService) 1. 2. 在idea中选择scala编译时,带上参数-target:jvm-1.8 或者在pom文件中 1) 如果使用 maven-scala-plugin 这个插件编译的,则如下 <arg>-target:jvm-1.8</arg> <plugin> <groupId>org.scala-tools</grou...
5. Static Interface Methods In addition to declaring default methods in interfaces, Java 8 also allows us to define and implement static methods in interfaces. Since static methods don’t belong to a particular object, they’re not part of the API of the classes implementing the interface; the...
Differences between static and default methods in Java 8: 1) Default methodscan beoverriden in implementing class, while staticcannot. 2) Static method belongsonlyto Interface class, so you can only invoke static method on Interface class, not on class implementing this Interface, see: ...
interfaceJsonSerializable{publicstaticfromJson(obj:any);publictoJson():string;} is irrelevant as it basically re-declares the interface of the JSON object. That absolutely does not require static interface methods in any way. Serginho commentedon Jan 16, 2017 ...
public @interface Autowired { boolean required() default true; } 本文我们重点关注它使用在FIELD成员属性上的case,标注在static静态属性上是本文讨论的中心。 说明:虽然Spring官方现在并不推荐字段/属性注入的方式,但它的便捷性仍无可取代,因此在做业务开发时它仍旧是主流的使用方式 ...
This feature enables an interface to define static members. This enables interfaces to define operators that must be provided by implementing types.
1) Default methods can be overriden in implementing class, while static cannot. 2) Static method belongs only to Interface class, so you can only invoke static method on Interface class, not on class implementing this Interface, see: ...