The Java programming language supports various arithmetic operators for all floating point

and integer numbers. These operators are (+)(addition), (-)(subtraction),(*)

(multiplication), (/)(division), and (%)(modulo). The following table summarizes the

binary arithmetic operations in the Java programming language.

Operator Use Description

Operator | Use | Description |
---|---|---|

+ | op1 + op2 | Adds op1 and op2; also used to concatenate strings |

– | op1 – op2 | Subtracts op2 from op1 |

* | op1 * op2 | Multiplies op1 by op2 |

/ | op1 / op2 | Divides op1 by op2 |

% | op1 % op2 | Computes the remainder of dividing op1 by op2 |

So Let’s take an example to understand operators better

/************************************************************************* * Math and Arithmetic Operators in Java Example * *************************************************************************/ public class MyClass { public static void main(String[] args) { //a few numbers int i = 37; int j = 42; double x = 27.475; double y = 7.22; System.out.println("Variable values..."); System.out.println(" i = " + i); System.out.println(" j = " + j); System.out.println(" x = " + x); System.out.println(" y = " + y); //adding numbers System.out.println("Adding..."); System.out.println(" i + j = " + (i + j)); System.out.println(" x + y = " + (x + y)); //subtracting numbers System.out.println("Subtracting..."); System.out.println(" i - j = " + (i - j)); System.out.println(" x - y = " + (x - y)); //multiplying numbers System.out.println("Multiplying..."); System.out.println(" i * j = " + (i * j)); System.out.println(" x * y = " + (x * y)); //dividing numbers System.out.println("Dividing..."); System.out.println(" i / j = " + (i / j)); System.out.println(" x / y = " + (x / y)); //computing the remainder resulting from dividing numbers System.out.println("Computing the remainder..."); System.out.println(" i % j = " + (i % j)); System.out.println(" x % y = " + (x % y)); //mixing types System.out.println("Mixing types..."); System.out.println(" j + y = " + (j + y)); System.out.println(" i * x = " + (i * x)); } }

**OUTPUT:**

The output from this program is: Variable values... i = 37 j = 42 x = 27.475 y = 7.22 Adding... i + j = 79 x + y = 34.695 Subtracting... i - j = -5 x - y = 20.255 Multiplying... i * j = 1554 x * y = 198.37 Dividing... i / j = 0 x / y = 3.8054 Computing the remainder... i % j = 37 x % y = 5.815 Mixing types... j + y = 49.22 i * x = 1016.58

java is a programming language and computing platform first released by Sun Microsystems in 1995. There are lots of applications and websites that will not work unless you have java installed, and more are created every day.

java was developed by Sun microsystem as an Object oriented language for general purpose business applications. The target of java is to write a program once and then run this program on multiple operating systems.The first publicly available version of java ( java 1.0) was released in ‘95. Sun Microsystems was acquired by the Oracle Corporation in 2k10. Oracle has now the steermanship for java . In 2k06 Sun started to make java accessible under the GNU General Public License (GPL). Oracle continued this plan called Open JDK.

Over time new improved versions of java have been released. The present version of java is java 1.9 which is also known as java 9.

java is defined by a specification and consists of a programming language, a compiler, core libraries and a runtime ( java virtual machine) The java runtime permit software developers to write program code in other languages than the java programming language which still runs on the java virtual machine. The java platform is usually associated with the java virtual machine and the java core libraries.

The java syntax is similar to C++. java is case-sensitive, e.g., variables called myValue andmyvalue are treated as different variables.

Basic topics Covered in java is

INDEX

Introduction of java

JDK vs JVM vs JVM

Java Data Types

Java Operators

Java Loop Control

Java Decision Making

Java Array

Java String

Class And Object

This Keyword in Java

Static Keyword in Java

Constructor in Java

Overloading in Java

Overriding in Java