Basic Syntax and Data Types in Java
Java is a popular programming language that’s globally used for structure operations for desktop, mobile, and web. we will explore the introductory syntax and data types in Java.
Basic Syntax and Data Types
it is an object- oriented language that’s extensively used for developing mobile and web applications, games, and enterprise software.
Java Syntax
1. Comments
Comments are used to give information about the code and are ignored by the compiler. There are two types of comments in Java single- line comments and multi-line comments. Single- line comments start with//, whilemulti-line commentary start with/ * and end with */.
2. Class and Method description
In Java, a class is a design for creating objects. It contains variables and styles. A system is defined within a class. A class is defined using the keyword” class”, followed by the name of the class, and a brace of curled braces. A system is defined using the keyword” void”, followed by the name of the system, and a brace of hiatuses.
3. Statements and Expressions
A statement is a single line of code that performs a specific task. Statements are terminated with a semicolon(;). An expression is a combination of variables, operators, and method calls that estimate to a value.
Data Types in Java
1. Primitive Data Types
In Java, there are eight primitive data types byte, short, int, long, pier, double, char, and boolean. These data types are used to represent introductory values similar as figures, characters, and true/ false values.
2. Non-Primitive Data Types
Non-primitive data types are also called reference types because they relate to objects.
Variables and Constants
In Java, a variable is a named memory location that stores a value. Variables and constants are declared using the keywords” int”,” float”,” double”,” char”,” String”, and” final”.
Operators
1. Arithmetic Operators
Java supports several arithmetic operators, including addition(), subtraction(-), addition( *), division(/), and modulus().
2. Relational Operators
Java supports several relational operators, including lower than(<), lesser than(>), lower than or equal to (<=) , lesser than or equal to (>=) , equal to (==) , and not equal to(! =) .
3. Logical Operators
Java supports several logical drivers, including logical AND( & &), logical OR(||), and logical NOT(!).
Control Statements
Conditional statements are used for control the overflow of execution of a program. Java supports tentative statements and looping statements.
1. Looping Statements
Looping statements are used to execute a block of code constantly. Java supports for loops, while circles, and do- while loops.
2. Arrays
An array is a collection of analogous data types. In Java, arrays can be of primitive data types ornon-primitive data types. Arrays are declared using the syntax” type() arrayName”.
FAQs
1. What’s Java programming language used for?
Answer: Java programming language is used for structure operations for desktop, mobile, and web, as well as games and enterprise software.
2. What’s an array in Java?
Answer: An array is a collection of analogous data types in Java.
3. What are the different types of control statements in Java?
Answer: The different types of control statements in Java are conditional statements and looping statements.