Info Tech Guide

An object is a software bundle of related state and behavior. Software objects are often used to model the real-world objects that you find in everyday life.

A class is a blueprint or prototype from which objects are created.

Inheritance provides a powerful and natural mechanism for organizing and structuring your software.

Every programming language has its own set of rules and conventions for the kinds of names that you're allowed to use, and the Java programming language is no different. rules and conventions for naming your variables

A primitive type is predefined by the language and is named by a reserved keyword. Primitive values do not share state with other primitive values. 8 primitive data types supported by the Java programming language

An array is a container object that holds a fixed number of values of a single type. The length of an array is established when the array is created. After creation, its length is fixed. learn more about Array

The Java programming language provides operators that perform addition, subtraction, multiplication, and division. There's a good chance you'll recognize them by their counterparts in basic mathematics.Sample of Arithmetic Operators

The unary operators require only one operand; they perform various operations such as incrementing/decrementing a value by one, negating an expression, or inverting the value of a boolean. Sample of Unary Operators

The Equality and Relational Operators

The equality and relational operators determine if one operand is greater than, less than, equal to, or not equal to another operand. The majority of these operators will probably look familiar to you as well. Sample of Equality and Relational Operators

The && and || operators perform Conditional-AND and Conditional-OR operations on two boolean expressions. These operators exhibit "short-circuiting" behavior, which means that the second operand is evaluated only if needed. Sample of Conditional Operators

Operators may be used in building expressions, which compute values; expressions are the core components of statements; statements may be grouped into blocks. Learn more about Expressions, Statements, and Blocks

The statements inside your source files are generally executed from top to bottom, in the order that they appear. Control flow statements, however, break up the flow of execution by employing decision making, looping, and branching, enabling your program to conditionally execute particular blocks of code.

This  describes the decision-making statements (if-then, if-then-else, switch), the looping statements (for, while, do-while), and the branching statements (break, continue, return) supported by the Java programming language.