Sunday, 9 October 2022

Types of variable in java

 java programming 

types of variable in java 

1) local variable 

2) instant variable 

3) static variable 

LOCAL VARIABLE - a variable define as within block or method and constructor called as variable 


/*package whatever //do not write package name here */

// Contributed by Avinash rathod 

import java.io.*;


class Local {

public static void main(String[] args)

{

int var = 10; // Declared a Local Variable

// This variable is local to this main method only

System.out.println("Local Variable: " + var);

}

}

INSTANT VARIABLE - instant variable is not static variable his declare outside of class constructor method 



// Online Java Compiler


class Instant {
    
    public String avier ; // declared instant variable 
    public Instant(){ //default constructor 
        this.avier = "do something "; // initialize instant variable 
    }
    public static void main(String[] args) { // main method 
        //int loc = 23;
        Instant name = new Instant(); // object creation 
        System.out.println("avier name is :-  " + name.avier);  //o/p
    }
}

STATIC VARIABLE - static variable is known as class variable 



/*package whatever //do not write package name here */

import java.io.*;

class STR{

public static String stat = "Avinash rathod"; //Declared static variable

public static void main (String[] args) {
//stat variable can be accessed without object creation
//Displaying O/P
System.out.println("static Name is : "+STR.stat);
}
}

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