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Thread: Need knowledge on initialising arrays of various types

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    Post Need knowledge on initialising arrays of various types

    For basic arrays, we can directly combine declaration and initialization as for eg: int[] num= new int[2]
    But can we do this do for forming class object arrays?
    like

    class stu
    {
    .....
    }
    stu[] s=new stu[2]

    ????


    please help. I am noob 2 java...


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    Default Re: Need knowledge on initialising arrays of various types

    Yes, you can make an array of objects.
    Remember code goes in between code tags =)

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    crisdeodates (September 18th, 2014)

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    Default Re: Need knowledge on initialising arrays of various types

    Thanks Hamenpoi,

    But I didnt get your point. I am new to java. Could you explain with an example?
    Thanks

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    Default Re: Need knowledge on initialising arrays of various types

    Also for arrays of objects, the array definition only creates slots for objects, it does not assign values to any of those slots. The code will need to do that in separate steps.
    If you don't understand my answer, don't ignore it, ask a question.

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    crisdeodates (September 18th, 2014)

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    Default Re: Need knowledge on initialising arrays of various types

    Quote Originally Posted by crisdeodates View Post
    Thanks Hamenpoi,

    But I didnt get your point. I am new to java. Could you explain with an example?
    Thanks
    public class MathEntity extends Entity {
      private MathEntity results[] = new MathEntity[3];
      private int result;
     
      public MathEntity() {
        id = EntityIDList.MATHENTITY;
      }
     
      public MathEntity(int val) {
        this();
        name = Integer.toString(val);
      }
     
      private void setAnswers() {
        results[0] = new MathEntity(result);
        results[1] = new MathEntity(wrongAnswer(result));
        results[2] = new MathEntity(wrongAnswer(result));
      }

    Do you mean like this? It's no where near optimal but neither am I.

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