Searching through Array of Objects

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Code:

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BusData data=new BusData();

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in Search.java is probably empty hence nullpointer with data.JourneyArray[position]

I think you need to add a method in Main.java to retrieve the field 'data' from other classes.

Main.java

Code:

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...
public static BusData getData() {
    return data;
}

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Search.java

Code:

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//BusData data=new BusData();
BusData data = new Main().getData();

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Which line is line 57?

ozzyman i tried what you said but it didnt work :(

kjkrum heres line

Code:

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System.out.println(search.showTime(0,1));

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Quote:

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Originally Posted by coopc

ozzyman i tried what you said but it didnt work :(

kjkrum heres line

Code:

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System.out.println(search.showTime(0,1));

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I didn't give you the full solution...

you need to create a constructor in Main.java and run your Main.main() method before you use getData() otherwise the field 'data' still won't have any values in it

So do I add this to the Main.java:

Code:

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        BusData datas;
        public Main()
        {
                datas=null;
        }
        public void setData(BusData  datas)
        {
                this.datas=datas;
        }
        public BusData  getData()
        {
                return datas;
        }

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and then add this in Search.java:

Code:

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BusData data = new Main().getData();

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I tried that and i still have the same error

datas = null? no, you're supposed to run your whole method so that you fill up data with actual values.

Code:

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public class MyClass {
  private BusData data;

  MyClass() {
      main();
  }

  public static void main() {
      data = new BusData();
      for(int i=0; i<someObject.length; i++) {
          data += someObject[i].value();
      }
  }

  public BusData getData() {
    return data;
  }
}

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