New developers often confuse the Java array length property with the String class’ length () method. While their functions are similar, the syntax is different. The Java array length property does not ...

According to the Java Enhancement Proposal 445: …these changes allow us to write Hello, World! with no access modifiers, no static modifiers, and no String[] parameter, so the introduction of these ...

When you write String::toUpperCase, Java binds each element of the stream (String object) to the toUpperCase() method. This means String::toUpperCase is interpreted as s -> s.toUpperCase(), where ...

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 { ...

Java’s String class encapsulates an array of bytes. A byte can be converted to a char, in which case, String becomes an array of characters used to compose words, sentences, or any other data ...