Ternary Opereator In Java || If Then Else Operator In Java || Java Techn...

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Ternary Operator in Java

-------------------------------------



- This operator is named so because it is the only operator

to take three operands.



- It is a conditional operator that provides a shorter syntax

   for the if...then...else statement.

 

- The first operand is a Boolean expression, if the expression

   is true then the value of the second operand is returned,

   otherwise the value of the third operand is returned.



----------------------------



Syntax



evaluation part ? codes_of_true : codes_of_false;



--------------------------------------------------------------------



public class Ternary

{

public static void main(String args[])

{

int i = 64;

double k =40.0;

int b = (i>k)?10:5;

System.out.println("b : "+b); //10

b = (i<k)?10:5;

System.out.println("b :"+b); //5

}

}



------------------------------------------------------



public class Ternary1

{

public static void main(String args[])

{

int a=5;

//int b = (int)((a==6)?5:10.0);

System.out.println((a==6)?5:10.5);

}

}



-----------------------------------------------------------

Main() Method Is Predefined Or User Defined In Java || Java Technocrat [...

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Main() Method Is Predefined Or User Defined || Java Technocrat [Hindi]

main method is predefined or user defined java technocrat hindi

Main() Method Is Predefined Or User Defined In Java || Java Technocrat [Hindi]



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What Is Array In Java Explained With Examples | Java Technocrat [Hindi]

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Source Code

--------------------------------------



public class Data

{

public static void main(String args[])

{

// step -1

int arr[];

String str[];



//sterp-2



arr = new int[3];

str = new String[3];



System.out.println("\nSee the array elements after construction\n");

for(int i =0;i<3;i++)

{

System.out.println(arr[i]);

}



for(int i =0;i<3;i++)

{

System.out.println(str[i]);

}



// step-3



arr[0]=12;

arr[1]=15;

arr[2]=7;



str[0]="Red";

str[1]="Green";

str[2]="Blue";

System.out.println("\nSee the elements after initialistaion\n");



for(int i =0;i<3;i++)

{

System.out.println(arr[i]);

}



for(int i =0;i<3;i++)

{

System.out.println(str[i]);

}

System.out.println(arr[5]); // ArrayIndexOutOfBoundsException

}

}







-----------------------------------------------------------------------------------------

What Are The Access Specifiers/Modifiers In Java || Learn Java In Hindi

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Access Modifiers in java

1. private access modifier

2. Role of private constructor

3. default access modifier

4. protected access modifier

5. public access modifier

6. Applying access modifier with method
overriding

There are
two types of modifiers in java: access modifiers and non-access
modifiers.

The access
modifiers in java specifies accessibility (scope) of a data member, method,
constructor or class.

There are 4
types of java access modifiers:

1. private
2. default
3. protected
4. public

There are
many non-access modifiers such as static, abstract, synchronized, native,
volatile, transient etc. Here, we will learn access modifiers.

Source Codes

-------------------------

A.java

public class A

{

public void m1()

{

System.out.println("public : m1 method");

}

protected void m2()

{

System.out.println("protected : m2 method");

}

void m3() // default - no access

{

System.out.println("no access : m3 method");

}

private void m4()

{

System.out.println("private : m4 method");

}

void call1()

{

m1();

m2();

m3();

m4();

}

}

class test

{

public static void main(String args[])

{

A a1 = new A();

a1.call1();

}

}

B.java

class B extends A

{

void call2()

{

// m4(); // private method can't be accessed here outside the class

// rest methods can be accessed easily here

m1();

m2();

m3();

}

}

class test1

{

public static void main(String srags[])

{

B b1 = new B();

b1.call2();

}

}

C.java

class C

{

void call3()

{

new A().m1();

new A().m2();

new A().m3();

}

}

class test2

{

public static void main(String args[])

{

C c1 = new C();

c1.call3();

}

}

Types Of Variables In Java || Learn Java In Hindi

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Source Code

-------------------------------

public class Test

{

int x;

int y;

static int res;

int add(int a,int b)

{

x=a;

y=b;

int sum = a+b;

return sum;

}

public static void main(String args[])

{

Test m1;

m1 = new Test();

int value = m1.add(20,15);

System.out.println("Sum is : "+value);

}

}

------------------------------------

What Is The Difference Between Object And Reference In Java || Learn Jav...

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Source Code

--------------------------------

class Student

{

int roll;

String name;

String course;

Student(){}

Student(int roll, String name, String course)

{

this.roll=roll;

this.name=name;

this.course=course;

}

void display()

{

System.out.println("Name : "+name+" Roll : "+roll+" Course : "+course);

}

}

public class OvsR

{

public static void main(String args[])

{

Student ss = new Student();

ss.display();

Student ss1 = new Student(3,"Akram","MCA"); // ss1 holds the base address

ss1.display();

new Student(); // orphan reference

}

}

--------------------------

Description

--------------

What Is The Difference Between Object And Reference In Java.

Difference between object & object reference in java.

The video looks at what an object is and how to create one in Java.  It defines the terms memory reference,instantiation, class and object.It also looks at the syntax for creating an object.

[Java] Restrictions For Declaration Of Class In Java || Learn Java 2018

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Restrictions For Declaration Of Class In Java

In this video I will explain restrictions for declaration of class in java.

please watch till the end without skipping

and please subscribe our channel

keywords

-------------

java class modifier, java access modifier, java public protected, java public modifier, java private class, java public class, java access specifiers, java modifiers, java modifiers and access specifiers, java protected class, java nested class, java inner class, java static class, java non static class, java nested static class, java basics, java tutorial, java instance variables, java class variables, variables in java, java access modifier tutorial, java inner class tutorial, java variables declaration

[Java] Restrictions For Declaration Of Class In Java || Learn Java 2018

JAVA is a truly object oriented programming language. You can't even write main function without class. Hence, it is necessary to learn to declare a class in JAVA. In this video Mr. Vineet Agrawal will show you how to declare a class in JAVA.

After watching this video you will be able to-

- Declare a class in JAVA

- Choose correct name for the class in JAVA

- Explain the structure of a class

- Define class properties

- Define class methods

In this tutorial, we will discuss about classes and objects in object oriented programming language Java. We will learn the syntax of class declaration and dive deep into access modifiers in Java. 

As the name suggests access modifiers in Java helps to restrict the scope of a class, constructor , variable , method or data member. 

There are four types of access modifiers available in java:

Default – No keyword required

Private

Protected

Public

A private member is only accessible within the same class as it is declared.

A member with no access modifier is only accessible within classes in the same package.

A protected member is accessible within all classes in the same package and within subclasses in other packages.

A public member is accessible to all classes (unless it resides in a module that does not export the package it is declared in).

We will also discuss nested class in this tutorial

A nested class is a member of its enclosing class. Non-static nested classes (inner classes) have access to other members of the enclosing class, even if they are declared private. Static nested classes do not have access to other members of the enclosing class.

How To Set Class Path Of Java In Windows 7/8/8.1/10 || Start Java Progra...

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Set class path of java.

In this video I will show full tutorial of how to set class path of java in winows 7,8,8.1,10 etc.

You should watch this till last.

JDK - C:\Program Files\Java\jdk1.8.0_121\bin;.

Notepad - C:\Windows;C:\Windows\System32;.

KeyWords

----------------------------

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How To Set Class Path Of Java In Windows 7/8/8.1/10 || Start Java Programming

[Java] Class Method VS Object Method || How To Call Methods Explained [H...

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Object method vs class method is a very conceptual thing in Java, every programmer must know the difference between object method vs class method and how to call object method and how to call class method.

Get Source code here - 

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Source Code

------------------

class Demo

{

void call1()

{

System.out.println("We are inside Object Method");

}

static void call2()

{

System.out.println("We are inside Class Method");

}

}

public class Test

{

public static void main(String args[])

{

Demo dd= new Demo();

dd.call1(); //Object method

Demo.call2();//class method

}

}

--------------------

KeyWords

------------------------------

object method vs class method, object method vs class method java, difference between object method and class method, tutorial, cource, oop, property, java programming, java (programming language), method, class, learn,object method,class method,learn java,java hindi tutorial,knowledge 360,java program with source code,explained

Beginning With Java Programming || Requirements To Write Java Programs |...

In this video, we guide you through the essential steps to start your journey with Java programming, focusing on setting up the class paths correctly. Understanding how to configure class paths is crucial for compiling and running Java programs, especially when dealing with multiple libraries and external dependencies.

We begin by explaining what a class path is and why it's important in the Java environment. Next, we walk you through the process of setting class paths on different operating systems, including Windows, macOS, and Linux. You'll learn how to configure the CLASSPATH variable, how to include multiple directories or JAR files, and how to troubleshoot common issues related to class paths.

This tutorial is perfect for beginners who are just starting with Java and need a solid foundation to ensure their development environment is set up correctly. By the end of this video, you’ll be able to confidently set and manage class paths, paving the way for smooth Java programming and development.

Java programming, setting class paths, Java classpath setup, Java for beginners, configure CLASSPATH Java, Java environment setup, Java development tutorial, Java class paths explained, Java basics, Java programming setup

Start Writing Programs in Java.

You need JDK (Java Development Kit)(Any version)(Latest is 1.9) and you need to set class path.

In this Video I have explained these two points.

You Should watch this if you are a programmer.

A Simple Java Code To Open Notepad || Java Tricks

In this video, we demonstrate a simple yet powerful Java trick: how to write a Java code that opens Notepad directly from your application. Whether you're a beginner or an experienced developer, this tutorial will show you how to use Java's Runtime class to interact with your operating system and launch applications like Notepad with just a few lines of code.

We start by explaining the basics of the Runtime class and how it allows Java applications to execute system commands. Then, we walk you through writing a short and effective Java program that opens Notepad on your computer. This tutorial is a great way to expand your Java skills and understand how to leverage the language to interact with the system.

By the end of this video, you'll have a working Java program that opens Notepad, and you'll have learned a useful trick that can be applied to launching other applications or executing system commands. This tutorial is perfect for Java developers looking to explore system-level programming and discover new ways to use Java in their projects.

Java code, open Notepad Java, Java tricks, Java Runtime class, simple Java program, launch applications Java, Java programming tutorial, Java for beginners, Java system commands, Notepad with Java

Source Code

import java.io.IOException;

import java.util.*;

class Notepad

{

public static void main(String args[])

{

Runtime rs=Runtime.getRuntime();

try

{

rs.exec("notepad");

}

catch(IOException e)

{

System.out.println(e);

}

}



}