同一个实例如何在 java 中的另一个 class 上以不同的方法工作

Question

Same instance is used in multiple method based on the argument providing. can we consider thread safety here. Let's assume that we've 2 class, Class Main & Class demo .

Class Demo {
   returnType methodExample(args...) {
      //based on the argument provide it returns
      return something
   }
}

Class Main {
   Demo demo = new Demo();

   returnType method1() {
      value = demo.methodExample(args);
   }
   
   returnType method2() {
      value = demo.methodExample(args);
   }
}

will it share same Demo Instance. And what of both method works asynchronously. please also describe the case in Spring Injecting by @AutoWired annotation

Apologies for typos or other mistakes.

Answer 1

yes it will share same Demo instance. but the calculations are performed under method methodExample() is based on what value you are passed on parameters. for using @autowire first you have to use @component annotation on Demo Class.

@Component
Class Demo {
   returnType methodExample(args...) {
      //based on the argument provide it returns
        return something
   }
}
Class Main {
   @Autowired
   Demo demo;

   returnType method1() {
      value = demo.methodExample(args);
   }

   returnType method2() {
      value = demo.methodExample(args);
   }
}