How to initialize char 2d array quickly?

Question

In C, I could initialize 2d char array using something like

 public static char hashTable[10][5] = {"", "", "abc", "def", "ghi", "jkl",
            "mno", "pqrs", "tuv", "wxyz"};

I am wondering how to do this in Java?

Answer 1

You can invoke toCharArray() on your String literals, the most similar construct I can think of is

public static char[][] hashTable = { 
        "".toCharArray(), "".toCharArray(), 
        "abc".toCharArray(), "def".toCharArray(),
        "ghi".toCharArray(), "jkl".toCharArray(), 
        "mno".toCharArray(), "pqrs".toCharArray(), 
        "tuv".toCharArray(), "wxyz".toCharArray() 
};

Answer 2

You can do the following,

public static char[][] arr = {{'a', 'd'},{'s','w','f'}};

arr[0] references the first array which is {'a', 'd'} while arr[1] references the second