Display not filled 2D array into JTextarea in java

Question

I want to display array elements in the "jTextArea1".My 2D array is not a completely filled one.it is like this. row_count = 4 and column_count =5.

2D array:

    4 8 8 4 5
    2 7 5 6 
    6 4 1 8
    9 5 5 2

---

for(int r=0;r<row_count;r++)
{
    for(int c=0;c<column_count;c++)
    {
        jTextArea1.setText(Integer.toString(newArray[r][c]));

    }
    System.out.println("\n\n");
}

Out put of the above code was just zero. what is the error of this code? thanks.

#

 0

Answer 1

you overwrite every time the text by doing:

jTextArea1.setText(Integer.toString(newArray[r][c]));

consider using the helpfull Arrays method deepToString and you will get rid off the nested loops :)

System.out.println(Arrays.deepToString(x).replace("[", "").replace("]", ""));

so you can use:

jTextArea1.setText(Arrays.deepToString(newArray).replace("[", "").replace("]", ""));

Answer 2

You overwrite the TextArea input with setText() . Try TextArea1.append() .