Java Tutorials

The main purpose of the Java FileOutputStream class is to write data to a file in the file system. The FileOutputStream is a subclass of OutputStream, an abstract superclass.

In this tutorial, we will learn about Java constructors. The JVM invokes constructors automatically when an object is created. The new operator invokes a constructor.

A Java static block is a code block executed when the class is loaded into the main memory. A code block is a group of statements treated as a single unit.

In this tutorial, we will learn about Java constants. A constant is an identifier whose value cannot be changed during the execution of the Java program. Constants are immutable.

The main purpose of the Java FileInputStream class is to read streams of raw data from the file in the file system. The FileInputStream is a subclass of InputStream.

In this tutorial, we will learn Java Conditional Operators. Conditional operators are also called as logical operators. These operators operate on boolean expressions.