Object to boolean conversion in Java

Question

For example I have an array Object[][] array = Object[n][2]; Second row of this array contains an boolean data, due to:

for (int i = 0; i < array.length; i++){
     boolean bool = true;
     array[i][1] = bool;
}

Is it possible to convert an array[i][1], which is an object type, back to the boolean value?

Casts are your only bet, but why do you have a heterogeneous array to begin with? — Makoto
– Makoto, Commented Nov 28, 2016 at 3:58
you probably mean second column when you say [i][1]. Just wondering. — Naman
– Naman, Commented Nov 28, 2016 at 3:58
@Makoto, I have used it to create JTable. And i just don't want to declare new class with Object and boolean attributes. — 0573FE491EA798FDCBC849B0E06EDC
– 0573FE491EA798FDCBC849B0E06EDC, Commented Nov 28, 2016 at 4:06

Asaph · Accepted Answer · 2016-11-28 03:55:30Z

4

You can use a cast to convert it back to a boolean type. For example, if array is declared as an Object[][] but contains a boolean type, you can do this:

boolean bool = (Boolean) array[0][1];

answered Nov 28, 2016 at 3:55

Asaph

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