How to call a method from a class without creating an instance fromthisclas

I want to create a class with methods but I want to call methods from this class without creating an instance from this class. Is this possible?
Is there in Java something like class methods and object methods????

keyword 'static' my friend.
public class foo {
public static void bar {
System.out.println ("hello");
foo.bar()

Similar Messages

  • How do you call a method from  another class without extending as a parent?

    How do you call a method from another class without extending it as a parent? Is this possible?

    Why don't you just create an instance of the class?
    Car c = new Car();
    c.drive("fast");The drive method is in the car class, but as long as the method is public, you can use it anywhere.
    Is that what you were asking or am I totally misunderstanding your question?
    Jen

  • How to call a method from another class

    I have a problem were i have to call a method from another class. What is the command line that i have to use. Thanks.

    Here's one I wipped up in 10 minutes... Cool!
    package forums;
    import javax.swing.JFrame;
    import javax.swing.JTextArea;
    import krc.utilz.io.Filez;
    import java.io.FileNotFoundException;
    class FileDisplayer extends JFrame
      private static final long serialVersionUID = 0L;
      FileDisplayer(String filename) {
        super(filename);
        this.setDefaultCloseOperation(EXIT_ON_CLOSE);
        this.setSize(600, 800);
        JTextArea text = new JTextArea();
        try {
          text.setText(Filez.read(filename));
        } catch (FileNotFoundException e) {
          text.setText(e.toString());
        this.add(text);
      public static void main(String args[]) {
        final String filename = (args.length>0 ? args[0] : "C:/Java/home/src/forums/FileDisplayer.java");
        try {
          java.awt.EventQueue.invokeLater(
            new Runnable() {
              public void run() {
                new FileDisplayer(filename).setVisible(true);
        } catch (Exception e) {
          e.printStackTrace();
    Filez.read
       * reads the given file into one big string
       * @param String filename - the name of the file to read
       * @return the contents filename
      public static String read(String filename) throws FileNotFoundException {
        return Filez.read(new FileReader(filename));
       * Reads the contents of the given reader into one big string, and closes the reader.
       * @param java.io.Reader reader - a subclass of Reader to read from.
       * @return the whole contents of the given reader.
      public static String read(Reader in) {
        try {
          StringBuffer out = new StringBuffer();
          try {
            char[] bfr = new char[BFRSIZE];
            int n = 0;
            while( (n=in.read(bfr,0,BFRSIZE)) > 0 ) {
              out.append(bfr,0,n);
          } finally {
            if(in!=null)in.close();
          return out.toString();
        } catch (IOException e) {
          throw new RuntimeIOException(e.getMessage(), e);
      }Edited by: corlettk on Dec 16, 2007 1:01 PM - dang [code [/tags][                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

  • How to call a method from class interface

    Hi ,
    I want to call a method from a 'class interface' in a BADI .
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    Method -- /SAPSRM/IF_PDO_DO_PARTNER_BASE~UPDATE_ITEM_PARTNERS
    Please let me know how can I call this method in my BADI.
    Thanks-

    Hi Harmeet,
    Follow these simple steps.
    1. Create an instance of class interface /SAPSRM/CL_PDO_DO_BASE if method /SAPSRM/IF_PDO_DO_PARTNER_BASE~UPDATE_ITEM_PARTNERS is instance method and
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    2.if method /SAPSRM/IF_PDO_DO_PARTNER_BASEUPDATE_ITEM_PARTNERS is static method ,call directly using class interface like /SAPSRM/CL_PDO_DO_BASE=> /SAPSRM/IF_PDO_DO_PARTNER_BASEUPDATE_ITEM_PARTNERS.
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    Goto EDIT-> Pattern ->ABAP Object Patterns, Give class name , instance name and method, you got the required code.
    Thanks,
    Prasad.

  • Calling a method from another class... that requires variables?

    I'm calling a method from another class to change the date (its a date object) in another class.
    I keep getting the error 'setDate(int,int,int) in Date cannot be applied to ()'
    My code is:
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    }I'm guessing I need to pass 3 parameters (day, month, year), but I'm not sure how! I have tried, but then I get errors such as ')' expected?
    Any ideas! :D

    f1d wrote:
    I'm calling a method from another class to change the date (its a date object) in another class.
    I keep getting the error 'setDate(int,int,int) in Date cannot be applied to ()'
    My code is:
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    cycleDate.setDate();
    }I'm guessing I need to pass 3 parameters (day, month, year), seems that way from the error you posted
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    setDate(16, 6, 2008);
    I have tried, but then I get errors such as ')' expected?
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    but typically ')' expected means just that, you have too many or not enough parenthesis (or in the wrong place, etc.)
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  • Help on Calling a method from another class

    how can i call a method from another class.
    Class A has 3 methods
    i just want to call only one of these 3 methods into my another class.
    How can I do that.

    When i am trying this
    A a=new A;
    Its calling all the methods from class A. I just want
    to call a specfic method.How can it be done?When i am trying this
    A a=new A();
    Its calling all the methods from class A. I just want to call a specfic method.How can it be done?

  • How to call a method of another class ?

    Hello,
    I�d like to know how to call a method of another class. I have to classes (class 1 and class 2), class 1 instantiates an object of class 2 and executes the rest of the method. Later, class 1 has to call a method of class 2, sending a message to do something in the object... Does anybody know how to do that ? Do I have to use interface ? Could you please help me ?
    Thanks.
    Bruno.

    Hi Schiller,
    The codes are the following:
    COMECO
    import javax.swing.UIManager;
    import java.awt.*;
    import java.net.*;
    import java.io.*;
    import java.awt.event.*;
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    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
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         catch (Exception e) {
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                        socket.getInetAddress() +
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              while(true) {
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                   if (message==null) break;
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              try {
              socket.close();
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              System.out.println(e);
         catch (IOException e) {
         System.out.println(e);
    AGORA
    import javax.swing.UIManager;
    import java.awt.*;
    import java.awt.event.*;
    import java.net.*;
    import java.io.*;
    import javax.swing.*;
    import java.net.*;
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    public class AGORA {
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    Dimension frameSize = frame.getSize();
    if (frameSize.height > screenSize.height)
    frameSize.height = screenSize.height;
    if (frameSize.width > screenSize.width)
    frameSize.width = screenSize.width;
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    frame.setVisible(true);
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    { System.out.println("agora ---> " +e);
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    public void remontar (final String msg) {
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                   System.out.println("agora ---> Passou pelo Runnable");
    System.out.println("agora --> Mensagem que veio do comeco para agora: "+ msg);
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    catch(Exception x) {
    x.printStackTrace();
    MAIN
    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    import com.borland.jbcl.layout.*;
    import javax.swing.border.*;
    import java.net.*;
    import java.io.*;
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    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
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    catch(Exception e) {
    e.printStackTrace();
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    Runnable setTextRun=new Runnable() {
    public void run() {
    try {
                   System.out.println("main ---> Passou pelo Runnable");
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    catch(Exception x) {
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    SwingUtilities.invokeLater(setTextRun);
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    // Ele deve ouvir e caso haja alguma nova mensagem, trat�-la para
    // alterar as vari�veis e redesenhar os pain�is
    // Al�m disso, o bot�o de refresh deve aparecer ativo em vermelho
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         BufferedReader input;
    System.out.println("main ---> port = 1500 (default)");
         port = 1500;
         try {
         server_socket = new ServerSocket(port);
         System.out.println("main ---> Server waiting for client on port " +
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              Socket socket = server_socket.accept();
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                        socket.getInetAddress() +
                        ":" + socket.getPort());
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              System.out.println(e2);
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              try {
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    fileExit_actionPerformed(null);
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    System.out.println("main --> Back from invokelater");
    []�s.

  • How to call java method from workflow script?

    Hi
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  • How to call a method from a separate class using IBAction

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  • ABAP Objects : calling one method from another class

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    Hi,
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  • Calling a method from another class or accessing a component from another

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  • Can't add list element when calling a method from another class

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            --omitted--
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              listmodel.addElement("Layer"+numLayer);
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