Skip to main content

Data Types in Java

 Data Types in Java 

Data type: 

 Data type indicates the different sizes and various values that can be stored in the variable. 

Types of data types in Java 

1.Primitive data types 

2.Non-primitive data types 

 Java Primitive Data Types 

There are 8 types of primitive data types are as follows: 

★ boolean data type 

★ byte data type 

★ short data type 

★ char data type 

★ int data type 

★ long data type 

★ float data type 

★ double data type 

 Java Non-Primitive Data Types 

Non primitive data types are: 

★Struct 

★Array 

★Class

Program example to understand the datatypes in java 

class Datatype { 

public static void main(String[] args) { 

int a=23; 

float b=34.5f; 

long c=90l; 

byte d=78; 

double e=78.8; 

char f='A'; 

short x=56; 

System.out.println("Primitive Data Types:"); 

System.out.println("The value of int datatype is: "+a); 

System.out.println("The value of float data type is: "+b); 

System.out.println("The value of long data type is: "+c); 

System.out.println("The value of byte data type is: "+d); 

System.out.println("The value of double data type is: "+e); System.out.println("The value of char data type is: "+f); 

System.out.println("The value of short data type is: "+x); 

Output: 

Primitive Data Types: 

The value of int data type is: 23 

The value of float data type is: 34.5 

The value of long data type is: 90 

The value of byte data type is: 78 

The value of double data type is: 78.8 

The value of char data type is: A 

The value of short data type is: 56





Comments

Post a Comment

Popular posts from this blog

Java Nested For Loop

  A for loop with another for loop is called nested for loop. Syntax: for(initialization;condition;increment/decrement){ for(initialization;condition;increment/decrement;){ }//inner for loop }//outer for loop  Example: public class nestedForloop{   public static void main(String[] args) {                         for ( int y= 1 ;y<= 3 ;y++){   for ( int x= 1 ;x<= 5 ;x++){    System.out.println(y+ " " +x);   }//inner loop  } //outer loop  System.out.print(“Nested For loop”); }  Pyramid *  * *  * * *  * * * *  * * * * * public class Pyramid { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j=1;j<=i;j++){ System.out.print("* "); } System.out.println() } } } * * * * * *  * * * * *  * * * *  * * *  * *...

Text Widgets

  A widget displaying the string text with a single style is called text widget. import 'package:flutter/cupertino.dart' ; import "package:flutter/material.dart" ; void main () { runApp( MyApp ()) ; } class MyApp extends StatelessWidget { @override Widget build (BuildContext context) { // TODO: implement build return MaterialApp ( home: Scaffold ( backgroundColor: Colors. teal , body: SafeArea ( child: Column ( children: <Widget>[ CircleAvatar ( radius: 50 , backgroundImage: NetworkImage ( 'https://dsearch.com/images?q=avatar%20user%20png' ) , ) , Text( 'Ahmad Mukhtiar', style: TextStyle( fontSize: 40.0, color: Colors. white , fontWeight: FontWeight. bold , ) , ), ] , ...

Java Variables and Types of variables in Java

  Variable:  The name of memory allocation which is used to store the data type during time execution.it is a combination of two words “vary or able” which means its value can be changed.  Deceleration:  We declare the variable as: Data_type Varible_Name;  Initialization:  We initialize the variable as: Varible_Name=value;  Definition:  We define the variable like as: Data_type Varible_Name = Value; Example:  Int y; (Declaration of variable)  y=10; (Initialization of variable)  Int x=10; (Definition of variable)  Types of Variables  There are three types of variable are as follows:  1. Local variable:     A type of variable that is  used inside the function and never accessed  outside.  2. Instance variable:    A type of variable that  is declared inside the class and outside the  function. It accesses the value through the object.  3. Static variable:    A ...