String pools String is possibly the most-used class in Java. If a new object was created in the memory heap everytime we used a String, we would waste a lot of memory.

The example code below shows how to use Java’s DirectoryStream in a method to list the files of a directory: public Set<String> listFilesUsingDirectoryStream(String dir) throws IOException { ...

Benefits of the Java String printf method The Java String printf method can be confusing at first, but it greatly simplifies how you format complex Strings. This is especially true when creating ...

Java is influenced by C and C++, so it has many similarities with those languages (and C#). One of the big advantages of Java is that it is “platform independent.” This means that code you ...

In addition to sets, there are queues (java.util.Queue) and maps (java.util.Map). Maps are not collections in the truest sense as they don’t extend collection interfaces, but developers can ...