Skip to content
codingtube

codingtube

Coding and Programming tutorials

  • javascript
  • React
  • ES6
  • React js
  • coding
  • ffmpeg
  • java
  • programming
  • information
  • coding
  • Privacy Policy
  • Twitter trends
  • Age Calculatore
  • Codingtube Community
  • YouTube Tags Generator
  • About
  • Toggle search form

Lexical Issues in java

Posted on September 21, 2021September 21, 2021 By christo No Comments on Lexical Issues in java

Java programs are a collection of whitespace, identifiers, literals, comments, operators, separators, and keywords

Whitespace

Java is a free-form language. This means that we do not need to follow any special indentation rules. For instance, the Example program could have been written all on one line or in any other strange way you felt like typing it, as long as there was at least one whitespace character between each token that was not already delineated by an operator or separator. In Java, whitespace is a space, tab, or newline.

Identifiers

Identifiers are used for class names, method names, and variable names. An identifier may be any descriptive sequence of uppercase and lowercase letters, numbers, or the underscore and dollar-sign characters. They must not begin with a number .

Java is case-sensitive, so VALUE is a different identifier than Value

Example of identifiers in java

AvgTempcounta4$testthis_is_ok

Invalid identifier names include these

2counthigh-tempNot/ok

Literals

A constant value in Java is created by using a literal representation of it. For example, here are some literals

10098.6‘X’“This is a test”

Separators in java

In Java, there are a few characters that are used as separators. The most commonly used separator in Java is the semicolon. As you have seen, it is used to terminate statements. The separators are shown in the following table:

SymbolNamePurpose
( )ParenthesesUsed to contain lists of parameters in method definition and invocation.
Also used for defining precedence in expressions, containing expressions
in control statements, and surrounding cast types
{ }BracesUsed to contain the values of automatically initialized arrays. Also used
to define a block of code, for classes, methods, and local scopes.
[ ]BracketsUsed to declare array types. Also used when dereferencing array values.
;SemicolonTerminates statements
,CommaSeparates consecutive identifiers in a variable declaration. Also used to
chain statements together inside a for statement
.PeriodUsed to separate package names from subpackages and classes. Also
used to separate a variable or method from a reference variable.

java Tags:Identifiers in java, Lexical Issues in java, Literals in java, Separators in java, Whitespace in java

Post navigation

Previous Post: The Java Keywords | list of java keywords
Next Post: The Primitive data types in java

Related Posts

this Keyword in java java
PowerSum backtracking algorithm in java Algorithm
Insertion Sort in java java
Java Type Wrappers java
Access Modifiers in Java java
Multidimensional Array in Java java

Leave a Reply Cancel reply

You must be logged in to post a comment.

Recent Posts

  • Affiliate Marketing Principles
  • The Basics You Need to Know About Affiliate Marketing
  • Affiliate Marketing Options
  • All About Affiliate Marketing
  • Classification of Database Management Systems
  • Three-Tier and n-Tier Architectures
    for Web Applications
  • Two-Tier Client/Server Architectures for DBMSs
  • Basic Client/Server Architectures in DBMS
  • Centralized DBMSs Architecture in DBMS
  • Tools, Application Environments, and Communications Facilities in DBMS

Categories

  • Affiliate marketing (5)
  • Algorithm (43)
  • amp (3)
  • android (223)
  • Android App (8)
  • Android app review (4)
  • android tutorial (60)
  • Artificial intelligence (61)
  • AWS (3)
  • bitcoin (8)
  • blockchain (1)
  • c (5)
  • c language (105)
  • cloud computing (4)
  • coding (4)
  • coding app (4)
  • complex number (1)
  • Computer Graphics (66)
  • data compression (65)
  • data structure (188)
  • DBMS (44)
  • digital marketing (9)
  • distributed systems (11)
  • ffmpeg (26)
  • game (3)
  • html (6)
  • image processing (35)
  • Inequalities (1)
  • information (4)
  • java (212)
  • java network (1)
  • javascript (9)
  • kotlin (4)
  • leetcode (1)
  • math (21)
  • maven (1)
  • mysql (1)
  • Node.js (8)
  • operating system (109)
  • php (310)
  • Principle Of Mathematical Induction (1)
  • programming (6)
  • Python (4)
  • Python data structure (9)
  • React native (1)
  • React.js (22)
  • Redux (1)
  • seo (4)
  • set (12)
  • trigonometry (6)
  • vue.js (35)
  • XML (3)

sitemap

sitemap of videos

sitemap of webstories

sitemap of website

  • Affiliate marketing
  • Algorithm
  • amp
  • android
  • Android App
  • Android app review
  • android tutorial
  • Artificial intelligence
  • AWS
  • bitcoin
  • blockchain
  • c
  • c language
  • cloud computing
  • coding
  • coding app
  • complex number
  • Computer Graphics
  • data compression
  • data structure
  • DBMS
  • digital marketing
  • distributed systems
  • ffmpeg
  • game
  • html
  • image processing
  • Inequalities
  • information
  • java
  • java network
  • javascript
  • kotlin
  • leetcode
  • math
  • maven
  • mysql
  • Node.js
  • operating system
  • php
  • Principle Of Mathematical Induction
  • programming
  • Python
  • Python data structure
  • React native
  • React.js
  • Redux
  • seo
  • set
  • trigonometry
  • vue.js
  • XML
  • Blog
  • Data compression tutorial - codingpoint
  • How to change mbstring in php 5.6
  • How to diagnose out of memory killed PHP-FPM
  • Introduction to jQuery
  • Privacy
  • Affiliate marketing
  • Algorithm
  • amp
  • android
  • Android App
  • Android app review
  • android tutorial
  • Artificial intelligence
  • AWS
  • bitcoin
  • blockchain
  • c
  • c language
  • cloud computing
  • coding
  • coding app
  • complex number
  • Computer Graphics
  • data compression
  • data structure
  • DBMS
  • digital marketing
  • distributed systems
  • ffmpeg
  • game
  • html
  • image processing
  • Inequalities
  • information
  • java
  • java network
  • javascript
  • kotlin
  • leetcode
  • math
  • maven
  • mysql
  • Node.js
  • operating system
  • php
  • Principle Of Mathematical Induction
  • programming
  • Python
  • Python data structure
  • React native
  • React.js
  • Redux
  • seo
  • set
  • trigonometry
  • vue.js
  • XML
  • Blog
  • Data compression tutorial - codingpoint
  • How to change mbstring in php 5.6
  • How to diagnose out of memory killed PHP-FPM
  • Introduction to jQuery
  • Privacy

© codingtube.tech