Allocate a double-String-Array

Question

I want to create a new String[][] Array but eclipse gives me an error:

public class CurriculumVitae {

String[][] education = new String[2][6]; //throws error here and expects "{" but why?
education[0][0] = "10/2012 − heute";
education[0][1] = "Studium der Informatik";
education[0][2] = "Johannes Gutenberg−Universit \\”at Mainz";
education[0][3] = "";
education[0][4] = "";
education[0][5] = "";
education[1][0] = "10/2005 − 5/2012";
education[1][1] = "Abitur";
education[1][2] = "Muppet-Gymnasium";
education[1][3] = "Note: 1,3";
education[1][4] = "";
education[1][5] = "";}

initializing values must have defining that kinds of data-structure.(Arrays)Because of that,you should use constructors. — TeachMeJava, May 06 '14 at 11:05

score 2 · Answer 1 · answered May 06 '14 at 10:59

2

Your declaration is ok.

However you must use an initializer block for assigning your array values.

Just enclose all education[x][y] statements within curly brackets, or move them to the constructor.

Initializer block example

public class CurriculumVitae {
    String[][] education = new String[2][6];
    // initializer block
    {
        education[0][0] = "10/2012 − heute";
        education[0][1] = "Studium der Informatik";
    }
}

Constructor example

public class CurriculumVitae {

    String[][] education = new String[2][6];
    // constructor
    public CurriculumVitae()
    {
        education[0][0] = "10/2012 − heute";
        education[0][1] = "Studium der Informatik";
    }
}

answered May 06 '14 at 10:59

Mena

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Thats it! Thank you, i think i always had those arrays in methods before and not as global values in a class. – Tak3r07 May 06 '14 at 11:03
@Mena is %100 right :) I said same words on the above of this post. – TeachMeJava May 06 '14 at 11:08
which methods looks more smooth regarding coding conventions? an initializer or a constructor? – Tak3r07 May 06 '14 at 11:40
@Tak3r07 take a look [here](http://stackoverflow.com/questions/804589/use-of-initializers-vs-constructors-in-java)! – Mena May 06 '14 at 11:49

score 0 · Answer 2 · answered May 06 '14 at 10:59

you code must be inside a method. For Example:

public class CurriculumVitae {

  public static void main(String[] args){
    String[][] education = new String[2][6];
    education[0][0] = "10/2012 − heute";
    education[0][1] = "Studium der Informatik";
    education[0][2] = "Johannes Gutenberg−Universit \\”at Mainz";
    education[0][3] = "";
    education[0][4] = "";
    education[0][5] = "";
    education[1][0] = "10/2005 − 5/2012";
    education[1][1] = "Abitur";
    education[1][2] = "Muppet-Gymnasium";
    education[1][3] = "Note: 1,3";
    education[1][4] = "";
    education[1][5] = "";
  }
}

Allocate a double-String-Array

2 Answers2