Access object created in one class into another

Question

I have a primary class as below:

public class classB{

  public classC getObject(String getstring){
     return new classC(getstring);
    }
}

Answer 1

If you want to get the object created in classB a static field should do the job

public class classB {

  public static objectCReference;

  public classC getObject(String getstring){
     objectCReference =  new classC(getstring);
     return objectCReference;
  }
}

Then you can access the reference in A

public classA {
  int a = 0.5;

  if (classB.objectCReference != null) { // Make sure to null check 
    classB.objectCReference.methodC(a); 
  }

}

Also please follow the language conventions and start your class names with capital letters.