How to convert a String to an int in Java? How can I convert a String to an int in Java? My String contains only numbers and I want to return the number it represents. For example, given the string "1234" the result should be the number 1234. Solution: int foo = Integer.parseInt("1234"); See the Java Documentation for more information. (If you have it in a StringBuilder (or the ancient StringBuffer), you'll need to do Integer.parseInt(myBuilderOrBuffer.toString()); instead). http://stackoverflow.com/questions/5585779/how-to-convert-a-string-to-an-int-in-java

Create ArrayList from array I have an array that is initialized like: Element[] array = {new Element(1), new Element(2), new Element(3)}; I would like to convert this array into an object of the ArrayList class. ArrayList<Element> arraylist = ???; Answer: new ArrayList<Element>(Arrays.asList(array)) http://stackoverflow.com/questions/157944/create-arraylist-from-array