Java中运用继承程序一直报错

Exception in thread “main” java. lang.No suchmethoderror,在写继承的时候，出现这个，这是什么意思啊，以下是代码：

public class Text7 {
    public static void main(String[] args){
        Bcat acat=new Bcat();
       acat.mouse(); 
          
    }
}

class Animal {
    public void eat() {
        System.out.println("吃饭");
    }

    public void drink() {
        System.out.println("喝水");
    }
}
class Cat extends Animal{
    public void mouse(){
        System.out.println("抓老鼠");
    }
}
class Dog extends Animal{
    public void lookhouse(){
        System.out.println("看家");
    }
}
class Bcat extends Cat{

}
class Ccat extends Cat{

}
class HDog extends Dog{
    public void breakhome(){
      System.out.println("拆家");
    }
}
class TDog extends Dog{
    public void touch(){
        System.out.println("蹭蹭");
    }
}

代码贴出来看看吧，哪个地方写错单词啥的了么

• 这篇博客: Exception in thread “main“ java.lang.IllegalArgumentException中的 解决方法： 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:
  

• 建立一个Application类

  package com.dachan.junitdemo;
  
  import org.springframework.boot.SpringApplication;
  import org.springframework.boot.autoconfigure.SpringBootApplication;
  
  /**
   * auther:kenychen
   * date:2020.11.19
   */
  
  @SpringBootApplication
  //@MapperScan(value={"com.dachan.junitdemo"})
  public class MainApplication {
  
      public static void main(String[] args) {
          SpringApplication.run(MainApplication.class, args);
      }
  
  
  
  }
  

  # ERROR2

  SLF4J: Class path contains multiple SLF4J bindings.
  SLF4J: Found binding in [jar:file:/C:/Users/dev/.gradle/caches/modules-2/files-2.1/org.slf4j/slf4j-simple/1.7.30/e606eac955f55ecf1d8edcccba04eb8ac98088dd/slf4j-simple-1.7.30.jar!/org/slf4j/impl/StaticLoggerBinder.class]
  SLF4J: Found binding in [jar:file:/C:/Users/dev/.gradle/caches/modules-2/files-2.1/ch.qos.logback/logback-classic/1.2.3/7c4f3c474fb2c041d8028740440937705ebb473a/logback-classic-1.2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
  SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
  SLF4J: Actual binding is of type [org.slf4j.impl.SimpleLoggerFactory]
  Exception in thread "main" java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.slf4j.impl.SimpleLoggerFactory loaded from file:/C:/Users/dev/.gradle/caches/modules-2/files-2.1/org.slf4j/slf4j-simple/1.7.30/e606eac955f55ecf1d8edcccba04eb8ac98088dd/slf4j-simple-1.7.30.jar). If you are using WebLogic you will need to add 'org.slf4j' to prefer-application-packages in WEB-INF/weblogic.xml: org.slf4j.impl.SimpleLoggerFactory
  

  换上了

      testImplementation "org.slf4j:slf4j-api:${slf4jVersion}"