CODEWITHSUNDEEP
javaclasspath
winston sanker
winston sanker

Reputation: 71

java setting classpath for class implementing interface

I've problem compiling these java files .I have a class MeterMovementService.java and an interface MeterMovementServiceMBean.java . The class is implementing this interface . And i compiled the interface first .Both the class and interface resides in same package . But when I try to compile the class it gives error as :

MeterMovementService.java:2: error: cannot find symbol
public class MeterMovementService  implements MeterMovementServiceMBean
                                              ^
  symbol: class MeterMovementServiceMBean
1 error

Here is the code for the MeterMovementService.java class

My class does'nt have dependency.It just implements the interface. 

  public class MeterMovementService  implements MeterMovementServiceMBean {
   private String message = "Sorry no message today";
   public String getMessage(){
      return message;
   }
   public void setMessage(String message){
      this.message = message;
   }
   public void printMessage(){
      System.out.println(message);
   }
   public void start() throws Exception{
       System.out.println(">>>>Starting with message=" + message);
   }
   public void stop() throws Exception{
       System.out.println(">>>>Stopping with message=" + message);
   }
}

Upvotes: 0

Views: 645

Answers (2)

winston sanker
winston sanker

Reputation: 71

javac -d . *.java compiles all the java files in the current directory and packages the compiled classfiles according to their package structure .

Upvotes: 1

Rohit Jain
Rohit Jain

Reputation: 213261

You need to ensure that your class files are placed under the package folder. For e.g. if your interface is defined under package - pkg1, your class file should be under pkg1 subfolder.

Your directory structure should be like this:

srcfolder -+
           +- pkg1 -+- MeterMovementServiceMBean.class
           |        +- MeterMovementService.class
           |
           +- MeterMovementService.java
           +- MeterMovementServiceMBean.java

Either you have to move the class files manually, or even better, you can compile your .java files using the below command, to let the compiler handle it all for you:

javac -d . MeterMovementServiceMBean.java

Upvotes: 1

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