Java

URL: https://www.progressiverobot.com/java-read-file-to-string/ Sometimes while working with files, we need to read the file to String in Java. Today we will look into various ways to read the file to String in Java. Java read file to String There are many ways to read a file to String in Java. We will explore the following ways […]

URL: https://www.progressiverobot.com/java-futuretask-example-program/ Sometime back I wrote a post about [Java Callable Future](/community/tutorials/java-callable-future-example) interfaces that we can use to get the concurrent processing benefits of threads as well as they are capable of returning value to the calling program. FutureTask is base concrete implementation of Future interface and provides asynchronous processing. It contains the methods to […]

URL: https://www.progressiverobot.com/permutation-of-string-in-java/ In this tutorial, we will learn how to find the permutation of a String in a Java Program. It's a tricky question and asked mostly in Java interviews. Algorithm for Permutation of a String in Java We will first take the first character from the String and permute with the remaining chars. If […]