CODEWITHSUNDEEP
java
BufBills
BufBills

Reputation: 8103

Java how to programmatically initialize 2d object array?

Object[][] dataEntriesg = {
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
        {"","","","",""},
};

I want to initialize 2d array such as this. the way I am doing it is so stupid. How can I use a loop to do it? I have tried to put it in for loop. But seems {} can be used only at declaration.

Upvotes: 0

Views: 646

Answers (3)

Pablo Gallego Falcón
Pablo Gallego Falcón

Reputation: 938

for (int i = 0; i < dataEntriesg.length ; i++) {
    Arrays.fill(dataEntriesg [i], "");
}

Upvotes: 0

Kick Buttowski
Kick Buttowski

Reputation: 6739

Used my sample as a blue print

For example, suppose x = new int[3][4], x[0], x[1], and x[2] are one-dimensional arrays and each contains four elements, as shown in the figure x.length is 3, and x[0].length, x[1].length, and x[2].length are 4

enter image description here

How to traverse and intilize the 2D array you can follow following sample as your blue print:

enter image description here

Upvotes: 1

MadProgrammer
MadProgrammer

Reputation: 347184

You could use a compound for-loop, something like...

dataEntriesg = new Object[25][5];
for (int row = 0; row < dataEntriesg.length; row++) {
    for (int col = 0; col < dataEntriesg[row].length; col++) {
        dataEntriesg[row][col] = "";
    }
}

...for example

Upvotes: 2

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