25. How to create a reference to an array

• Code that creates a reference to an array

  
      double[] grades = {92.3, 88.0, 95.2, 90.5};
      double[] percentages = grades;
      percentages[1] = 70.2;           // changes grades[1] too
      System.out.println("grades[1]=" + grades[1]);
                                       // prints 70.2
  
  

• Code that reuses an array variable

  
      double[] grades = new double[5];
      grades = new double[20]