java - If Statement not working with OR operator -

java - If Statement not working with OR operator -

so have shuffle method shuffles deck of cards. each card has dealt field either true/false depending on if has been dealt or not.

the shuffle method sets each cards dealt field false. i'm trying stop setting cards false, depending on if card in dealers/players hand.

public void shuffle(){ collections.shuffle(deck);//shuffles deck for(card card : deck){//for each card in deck if(!game.playershand.contains(card) || !game.dealershand.contains(card)){//if card not in dealers/players hand card.setdealt(false);//card no longer dealt }//end if }//end }//end shuffle

the above if statement not work. mark every card false, regardless.

if do:

public void shuffle(){ collections.shuffle(deck); for(card card : deck){ if(!game.playershand.contains(card)){ card.setdealt(false); } } }//end shuffle

it prevent card's dealt field in playershand beingness set false.

i'm not sure why || operand not working in case.

the || operator working fine, misunderstood

boolean x= !true || !false; system.out.println(x); // prints true

so apparently && looking

boolean x= !true && !false; system.out.println(x); // prints false

so in case be

if(!game.playershand.contains(card) && !game.dealershand.contains(card)){ ... }

it easier if negate whole expression

if(!(game.playershand.contains(card) || game.dealershand.contains(card))){ ... }

java if-statement