Tag Archives: loop

String Loop AP CS A Practice Multiple Choose Question

Below is an AP styled multiple choice question involving involving a while loop over a string and the indexOf() method. What is the result of the call to the method mystery(“xyaxy__x_yxy”,”xy”) ArrayIndexOutOfBounds  Error returns 1 infinite loop returns 3 returns 2   public int mystery(String str, String s2) { int r =0; while (str.indexOf(s2) > -1 ) … Continue reading String Loop AP CS A Practice Multiple Choose Question →

How to Loop over a List in Python

Lists are cool, and one of the first things you’re going to want to do is loop over a list. The  diagram below that breaks down how each part of this type of loop works: Now, this type of loop is called a foreach loop, and it’s a straightforward way to gain access to each element in the list. Let’s … Continue reading How to Loop over a List in Python →