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Judul : Difference Betwixt Static Vs Not Static Method Inwards Java
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Difference Betwixt Static Vs Not Static Method Inwards Java

In this article, nosotros volition accept a expect at the difference betwixt static together with non-static method inwards Java, 1 of the oft asked dubiety from Java beginner. In fact, agreement static keyword itself is 1 of the top dog programming fundamental, thankfully it's good defined inwards Java programming linguistic communication . Influenza A virus subtype H5N1 static method inwards Java belongs to class, which agency yous tin telephone weep upward that method past times using flat mention e.g. Arrays.equals(), yous don't demand to create whatsoever object to access this method, which is what yous demand to exercise to access non-static method of a class. Static method is treated differently past times compiler together with JVM than non-static methods, static methods are bonded during compile time, equally opposed to binding of the non static method, which happens at runtime.

Similarly you tin non access non static members within static context, which agency yous tin non purpose non static variables within static methods, yous tin non telephone weep upward non static methods from static ones, all those volition number inwards compile fourth dimension error.

Apart from these meaning differences betwixt static together with non static methods, nosotros volition too accept a expect at few to a greater extent than points inwards this Java tutorial, alongside a code example, which shows to a greater extent than or less of these differences inwards action.

By the way this is the 2nd article on static method, inwards kickoff article, nosotros receive got learned almost when to purpose static method inwards Java

Static vs Non Static method inwards Java

Let's encounter pair of differences betwixt static together with non static method inwards Java programming language, which is enforced past times linguistic communication itself.

1) I retrieve kickoff together with firstly departure betwixt them is that yous tin telephone weep upward static method without creating whatsoever object e.g. Collections.sort(). This makes static method useful utility,  spell yous demand to instantiate an object to telephone weep upward non static method inwards Java. Static methods are too pretty useful on several blueprint pattern including Factory and Singleton.

2) You tin non access a non static variable within whatsoever static method inwards Java, but contrary is fine i.e. yous tin access static variables or telephone weep upward static method from a non static method without whatsoever compile fourth dimension error.

3) One to a greater extent than worth noting departure betwixt static together with non static method is that you tin non override static method inwards Java. They are bonded during compile fourth dimension using static binding. Though yous tin create a like static method inwards sub class, that is know equally method hiding inwards Java.

4) static methods are known equally flat methods, if yous synchronize static method inwards Java thence they acquire locked using dissimilar monitor than non static methods e.g. both static together with non static methods are locked using dissimilar monitor inwards Java, together with that's why its grave Java error to portion a resources betwixt static together with non static method inwards Java.

5) Static methods are ordinarily used within utility classes e.g. java.util.Collections or java.util.Arrays, because they are easier to access, equally they  don't demand an object. One of the pop instance of static method is though main method, which human activity equally entry betoken for Java programs.

Here is the Java plan to highlight pair of differences betwixt static together with non static methods inwards Java :

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

  * Java plan to present to a greater extent than or less differences betwixt static together with non static methods inwards Java.

  *

  * @author http://javarevisited.blogspot.com

  */

public class StaticMethodTest {

 

    private static int version;

    private String name;

    private static final Logger logger = LoggerFactory.getLogger(StaticMethodTest.class);

    public static void main(String args[]) {

    

        // You tin telephone weep upward static method directly, wihtout creating whatsoever object

        StaticMethodTest.staticMethod();

     

        // You demand an object to telephone weep upward non static mehtod inwards Java

        StaticMethodTest myObject = new StaticMethodTest();

        myObject.nonStaticMethod();

   

    }

 

    public void nonStaticMethod(){

        logger.info("I am a non static method inwards Java");

     

        // You tin access static variable within non static method

        logger.info("static version from non static method " + version);

    }

 

 

    public static void staticMethod(){

        logger.info("I am a static method inwards Java, version : " + version);

     

        //System.out.println(name); // compile fourth dimension error

    }

}

Output:

2013-07-01 04:10:08,029 0    [main] INFO  StaticMethodTest  - I am a static method inwards Java, version : 0

2013-07-01 04:10:08,060 31   [main] INFO  StaticMethodTest  - I am a non static method inwards Java

2013-07-01 04:10:08,060 31   [main] INFO  StaticMethodTest  - static version from non static method 0

That's all on difference betwixt static together with non static methods inwards Java. You tin encounter that non static members are non accessible within static context together with yous too demand to create an object, earlier calling a static method, due to this argue static methods are to a greater extent than suited equally utility method e.g. Arrays.deepEquals().

Further Learning
SOLID Principles of Object Oriented Design
Absolute Introduction to Object Oriented Programming inwards Java
Java - Object Oriented Programming [For Absolute Beginners]

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