Filter the results Item type Select All/None Question Page File Quiz Collection Image Folder Movie Link New items since Yesterday Last week Last month Ever Search results Subscribe to an always-updated RSS feed. 5 items matching your search terms. Sort by relevance date (newest first) alphabetically An efficient way to delete an item from a dynamic list It is sometimes tricky working with linked lists if you are searching for an item to delete it. Located in Computing / Programming / Java Check if a string has a white space at any position It is important sometimes to check a string and make sure that it does contain a white space (e.g. space, new line, tab, etc ...). Located in Computing / Programming / Java Check if a string is Null or Empty It is sometimes not practical to work out a string object immediately before validating if it is null or not Located in Computing / Programming / Java Make a phone number callable in Android You may want to present a number and make it callable. Located in Computing / Programming / Java Variables and Memory Optimization When you start coding, you need to be mindful to memory usage and leakage. Located in Computing / Programming / Java