Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

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 ...

How to write a Java palindrome program for Strings Good programmers need to create code that efficiently solves problems, using various methods. A popular academic exercise is to create a program that ...

The Java Scanner class provides the following self-explanatory methods: nextInt() nextByte() nextBoolean() nextFloat() nextDouble() nextLong() nextShort() But the one method it doesn’t have is ...

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 { ...