The use of “this” in Java

Question

If I write the following class:

public class Example {

      int j;
      int k;

      public Example(int j, int k) {
           j = j;
           k = k;
          


        

Answer 1

Another useful approach (though seldom used) is to declare method parameters final:

The following block will not compile, thus alerting you to the error immediately:

  public Example(final int j, final int k) {
       j = j;
       k = k;
  }