Java Context/this in action

this.java

/**
Run it at https://repl.it/repls/PunyDisguisedDalmatian
*/
class Foo {
  public void helloFoo() {
    System.out.println("Hello Foo");
  }
  
  public Foo getContext() {
    return this;
  }
  
  public Foo getContextByClassName() {
    return Foo.this;
  }
}

class Main {
  public static void main(String[] args) {
    Foo foo = new Foo();
    // calling instance method using foo object
    foo.helloFoo();
    
    // get foo context via the object
    Foo context = foo.getContext();
    context.helloFoo();
    
    // now get it using getContextByClassName
    context = foo.getContextByClassName();
    context.helloFoo();
  }
}