Java for loop multiple variables [closed]

Answer 1

Separate the increments with a comma too.

for(int a = 0, b = 1; a<cards.length-1; b=a+1, a++)

Answer 2

Your for loop is malformed — it can't take 4 arguments, and you can't combine two with ; as you did.

Use:

for(int a = 0, b = 1; a<cards.length-1; a++)

Answer 3

Your for loop is wrong. Try :

for(int a = 0, b = 1; a<cards.length()-1; b=a+1, a++){

Also, System instead of system and == instead of ===.

But I'm not sure what you're trying to do.