Can I add words to a string using an if/else statement in Java?

Currently, I'm attempting to make a very basic blackjack game that will also tell the player what is in their hand and what is in the computer's hand after each turn is taken.

if(y == 1){
        acecomp = true;
        comphand + "Ace";
    }
    else

My snippet of code looks like this, and obviously what i'm asking it to do isn't possible, otherwise i wouldn't be here. Is there any way that I can make the if/else statement add a word to the computer's hand?