Since Java 5 you can use Arrays.toString(arr) or Arrays.deepToString(arr) for arrays within arrays. Note that the Object[] version calls .toString() on each object in the array. The output is even decorated in the exact way you're asking.

Examples:

• Simple Array:

  String[] array = new String[] {"John", "Mary", "Bob"};
  System.out.println(Arrays.toString(array));
  

  Output:

  [John, Mary, Bob]
  

• Nested Array:

  String[][] deepArray = new String[][] {{"John", "Mary"}, {"Alice", "Bob"}};
  // Gives undesired output:
  System.out.println(Arrays.toString(deepArray));
  // Gives the desired output:
  System.out.println(Arrays.deepToString(deepArray));
  

  Output:

  [[Ljava.lang.String;@106d69c, [Ljava.lang.String;@52e922]
  [[John, Mary], [Alice, Bob]]
  

• double Array:

  double[] doubleArray = { 7.0, 9.0, 5.0, 1.0, 3.0 };
  System.out.println(Arrays.toString(doubleArray));
  

  Output:

  [7.0, 9.0, 5.0, 1.0, 3.0 ]
  

• int Array:

  int[] intArray = { 7, 9, 5, 1, 3 };
  System.out.println(Arrays.toString(intArray));
  

  Output:

  [7, 9, 5, 1, 3 ]
  

Random r = new Random();
int[]arr = new int[5];

for(int i=0;i<arr.length;i++)
{
    arr[i] = Math.abs(r.nextInt()%255) +1;
    System.out.print(arr[i] + "\t");
}

System.out.println();
Arrays.sort(arr);
for(int item: arr)
    System.out.println(item);

Consider using java.util.Arrays.

There is a method in there called deepToString. This will work great here.

System.out.println(Arrays.deepToString(table));

Relevant here: Simplest way to print an array in Java

You are replacing the text each time you call labelWord.setText().

Just build the whole string before you set it

StringBuilder builder = new StringBuilder();
for (int j = 0; j <= myArray.length; j++) {
    builder.append(myArray[j]);
}
labelWord.setText(builder.toString());

list.toString() is good enough.

The interface List does not define a contract for toString(), but the AbstractCollection base class provides a useful implementation that ArrayList inherits.