Print a String's even and odd indexes
Printing the characters at the even and odd indexes sounds like two similar tasks. So the code for these tasks should look very similar. You can either extract that code to a separate method, or, since it is very simple, just write the code twice.

public static void printEvenOddIndexes(String[] strings) {          
    for (String word : strings) {

        for (int i = 0; i &lt; word.length(); i += 2) {
            System.out.print(word.charAt(i));
        }

        System.out.print(" ");

        for (int i = 1; i &lt; word.length(); i += 2) {
            System.out.print(word.charAt(i));
        }

        System.out.println();
    }
 }


The two loops only differ by the starting index. Note the += 2 at the end of the for loop.