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Java bro

Java full stack tutorial

  • Home
  • Java
    • Core java
    • Advance java
    • Java 8
    • Java examples
    • Java Puzzles
    • Java practice
  • J2ee
    • Jdbc
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    • Jsp
    • Jstl
  • Frame works
    • Hibernate
    • ReactJs
    • Angular
    • Struts 1.x
    • Struts 2.x
    • TypeScript
  • Spring
    • Spring core
    • Spring DAO
    • Spring ORM
    • Spring AOP
    • Spring MVC
    • Spring Boot
  • Micro services
    • Zuul
    • Cloud config server
    • Hystrix
    • Kafka
    • Redis cache
    • Sleuth
    • Zipkins
  • Interview Q&A
    • Java
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    • Micro services
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  • Home
  • Java
    • Core java
    • Advance java
    • Java 8
    • Java examples
    • Java Puzzles
    • Java practice
  • J2ee
    • Jdbc
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    • Jsp
    • Jstl
  • Frame works
    • Hibernate
    • ReactJs
    • Angular
    • Struts 1.x
    • Struts 2.x
    • TypeScript
  • Spring
    • Spring core
    • Spring DAO
    • Spring ORM
    • Spring AOP
    • Spring MVC
    • Spring Boot
  • Micro services
    • Zuul
    • Cloud config server
    • Hystrix
    • Kafka
    • Redis cache
    • Sleuth
    • Zipkins
  • Interview Q&A
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  • Core java tutorial

Equality operator in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Assignment operators in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Increment-decrement operators in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Relational operators in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Arithmetic operators in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Operators in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Floating point literals in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Boolean literals in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Character literals in java

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Integral literals in java

Integer literals : Values that we can assign to integer data types ( byte , short , int, long ) are called integer literal . All positive and negative numbers

  • vsreenu48
  • August 13, 2022August 14, 2022
  • Core java tutorial

Literals in java

A constant value that can be assigned to variable is called literal. For example : int a= 10. Here, 10 is a literal. The following are different types of literals

  • vsreenu48
  • August 13, 2022August 14, 2022
  • Core java tutorial

Single and double precision in java

Single precision : To represent IEEE standard single precision float type we need 32 bit word. First bit (left most bit) is the sign bit. Next eight bits are Exponent

  • vsreenu48
  • August 13, 2022August 14, 2022
  • Core java tutorial

Floating point data type in java

Floating point data types can hold fraction numbers. float, double comes under Floating point data types category. Let’s see each one in detail . float : float size is 32

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Boolean data type in java

boolean : To assign logical values, java provided boolean data type Possible values we can assign to boolean type are true and false Both true and false are case sensitive

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Core java tutorial

Character data types in java

In java, char is used to hold the character data. In C & C++ we can use ASCII characters only. To hold all the ASCII characters 1 byte (1 byte

  • vsreenu48
  • August 13, 2022August 13, 2022
  • Java Puzzles

Java puzzle 1

Identify greater number and smaller number without using if else conditions . Let’s say we have two numbers a , b . How do you print greater number and smaller

  • vsreenu48
  • July 13, 2022July 13, 2022
  • Uncategorized

React native tutorial

install node js install expo npm install -g expo-cli create project in your machine – open cmd and run expo init project-name download android studio for simulator for windows machine

  • vsreenu48
  • July 2, 2022July 2, 2022
  • Realtime Exceptions

PKIX path building failed and unable to find valid certification path to requested target in MAC Os

Download certificate from chrome browser Open chrome browser  Open google.com Click on lock icon in the left side of address bar Click on connection is secure Click on certificate is

  • vsreenu48
  • June 8, 2022June 8, 2022
  • Realtime Exceptions

No router instance found. You should only use “next/router” inside the client side of your app

use useRouter hook . It may resolve ur proble. import { useRouter } from ‘next/router’;

  • vsreenu48
  • September 1, 2021September 1, 2021
  • Realtime Exceptions

TypeError: First argument must be a string in React

Add default value to property . See the below code we are passing empty string as default value &ltStyledHTML html= {landingPage?.helpCenter?.vocBodyMessage || ”} /&gt

  • vsreenu48
  • February 22, 2021February 22, 2021
  • Threads in java

Create a thread by implementing Runnable interface

We can create thread in the following two ways . 1) By extending Thread class2) By implementing Runnable interface In this tutorial we are going to learn how to create

  • vsreenu48
  • December 18, 2020December 21, 2020
  • Threads in java

Create a thread by extending Thread class

  • vsreenu48
  • December 18, 2020December 18, 2020
  • Threads in java

Life cycle of a thread

A thread is an independent path of execution of a program. We can run multiple threads simultaneously within a program . A thread can be in one of the below

  • vsreenu48
  • December 18, 2020December 21, 2020
  • Threads in java

Introduction to multi threading in java

Multitasking : Executing multiple tasks at the same time is called multi tasking . Here task can be program . Even multi tasking and multi processing words are being used

  • vsreenu48
  • December 18, 2020December 21, 2020
  • Java Collections

List Interface in java

  • vsreenu48
  • December 18, 2020December 18, 2020
  • Java Collections

Collection Interface in java

1) Collection interface is child of Iterable interface . 2) Collection interface provided the most common methods , which can be applied for any collection object 3) Following is the

  • vsreenu48
  • December 18, 2020December 21, 2020
  • Java Collections

Hierarchy of collection framework

  • vsreenu48
  • December 18, 2020December 18, 2020
  • Java Collections

Why collection framework in java

In real time programming , Some times we need to group individual objects into single unit . We can achieve this using arrays . But arrays have below limitations .

  • vsreenu48
  • December 18, 2020December 21, 2020
  • Java reflection api

Get modifier details of a class at run time in java

In java, many modifiers are there, those are: 1) private2) protected3) public4) default5) Abstract6) Final7) Synchronised8) Volatile9) Static10) Native11) Transient default is not a keyword. If you don’t specify any

  • vsreenu48
  • December 18, 2020December 22, 2020
  • Java reflection api

Get package details of a class at run time in java

Package is collection of classes , interfaces and sub packages. Package must be a first statement of a class. To get package details getPackage() method is given in java.lang.Class .

  • vsreenu48
  • December 18, 2020December 22, 2020

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  • Equality operator in java
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  • Boolean literals in java

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