get every other element out of a for loop or array

jjdelorimier

hi somewhat novice programmer. I am trying to get every other element from an array or loop actually.

for(int i =0;i<5;i++){ println(i); } //it prints 0,1,2,3,4

is there a function to get it to print 0,2,4 and then a way to invert it to get 1,3...so I can draw a line through a 2d array. thanks.

akenaton

@jjdelorimier== that 's easy

        for(int i =0;i<5;i++)
        { println("i1===" + i);
        }

        for(int i =0;i<5;i=i+2)
        { println("i2===" + i);
        }//it prints 0,2,4

        for(int i =1;i<5;i=i+2)
        { println("i3===" + i);
        }//it prints 1,3

PhiLho

for (int i = 0; i < 5; i += 2) {

Nicer with some spaces, IMHO...
i++ is, somehow, a shortcut to i += 1, so you can make increments of any size.

jjdelorimier

Thanks guys appreciate it!