How to pass Object from java class to another java class

Question

I created an instance of a class in java as following:

ABC ab = new ABC();

I want to access this instant ab in another class

Answer 1

It is difficult to answer your question without more specific information about your problem, but this would certainly work:

You can use a setter to initialize an instance variable in your other class if you want to use it everywhere in that class:

class someClass {
   void someMethod() {
      ABC ab = new ABC();
      XYZ xyz = new XYZ();
      xyz.setABC(ab);
   }
}

class XYZ {
   ABC ab;
   //...
   void setABC(ABC ab) {
     this.ab = ab;
   }
   //...
   void doSomething() {
      // do something with instance variable ab
   } 
}