Method declaration in Class

Hi Experts,
In Classes and Methods i got one requirement like this , Please respond it.
I have to create the method , where class is already defined(ZCL_CONFIGURABLE_ITEM )
Create Method: IS_SEQUENCE_NOT_TO_PRINT .
Class name :ZCL_CONFIGURABLE_ITEM
They had given me example logic also. But iam not able to do this because i have no idea on classes and methods.
Please see this example and respond me .
Create Method: IS_SEQUENCE_NOT_TO_PRINT . This must be a value method in class ZCL_CONFIGURABLE_ITEM , passing document number VBDKR-VBELN that returns a parameter value: X = True, Blank = false.
GET BILLTO_PARTNER customer number for the document (reading VBPA where VBELN = document number VBDKR-VBELN and partner PARVW = RE / BP)Read table KNA1 to get field KNA1-KATR6 where KUNNR equals Billto partner, and fields VBDKR-VKORG, VBDKR-VTWEG, VBDKR-SPART, Store first character of field KNA1-KATR6 in a work field e.g. W_ KATR6.
Add the entry below to the ZLITERAL table in all clients
Read the records from ZLITERAL table (reading key1 = C_ZLIT_GENOSYS_KEY, and key2 = C_KATR6_1) where C_KATR6_1 = attribute on class, with value = KATR6_1 . You must add this attribute on the class. Populate the internal table L_ZLITERAL_TAB type ZLITERAL_TAB_TYPE.

Hi,
You can create the method from the CLASS BUILDER. SE24. There navigate to methods tab and enter you method name. Then select visibility public or private.
Then click on the parameters button to add parameters to the method. Selec IMPORT, EXPORT or RETURNING parameter for the function.
Regards,
Sesh

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What's "!" in method declaration in class?

See the excerption below, what's the meaning of "!"?
protected section.
methods CALC
    importing
      !IV_PROC_TYPE type STRING optional
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      !IV_PROC_CLASS type STRING optional .
Thanks in advance

hi,
the exclamation mark is nothing more than a hint to the ABAP compiler. It is required when you want use keywords like export, exceptions and so on as formal / actual argument.
In the given scenario it is no must. But maybe the code is produced by some generator. For a generator not smart enough to no all rules, it is good advice to use exclamation marks for any parameter.
Regards,
anver
<i>
if hlped pls mark points</i>

Help with Declaring a Class with a Method and Instantiating an Object

hello all i am having trouble understanding and completing a lab tutorial again!
im supposed to compile an run this code then save work to understand how to declare aclass with a method an instantiate an object of the class with the following code
// Program 1: GradeBook.java
// Class declaration with one method.
public class GradeBook
// display a welcome message to the GradeBook user
public void displayMessage()
System.out.println( "Welcome to the Grade Book!" );
} // end method displayMessage
} // end class GradeBook
// Program 2: GradeBookTest4.java
// Create a GradeBook object and call its displayMessage method.
public class GradeBookTest
// main method begins program execution
public static void main( String args[] )
// create a GradeBook object and assign it to myGradeBook
GradeBook myGradeBook = new GradeBook();
// call myGradeBook's displayMessage method
myGradeBook.displayMessage();
} // end main
} // end class GradeBookTest4
i saved above code as shown to working directory filename GradeBookTest4.java
C:\Program Files\Java\jdk1.6.0_11\bin but recieved error message
C:\Program Files\Java\jdk1.6.0_11\bin>javac GradeBook4a.java GradeBookTest4.java
GradeBookTest4.java:2: class, interface, or enum expected
^
GradeBookTest4.java:27: reached end of file while parsing
^
2 errors
can someone tell me where the errors are because for class or interface expected message i found a solution which says 'class? or 'interface' expected is because there is a missing { somewhere much earlier in the code. i dont know what "java:51: reached end of file while parsing " means or what to do to fix ,any ideas a re appreciated

Doesn't solve your problem, but this works for me...
public class GradeBook
public void displayMessage() {
    System.out.println( "Welcome to the Grade Book!" );
public static void main( String args[] ) {
    try {
      GradeBook gradeBook = new GradeBook();
      gradeBook.displayMessage();
    } catch (Exception e) {
      e.printStackTrace();
}

Error in using method get_event of class cl_htmlb_manager.

Hi All,
i am trying to get the event details in a particular method as follows;
data: event type ref to cl_htmlb_event .
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i am getting an error
field RUNTIME is unknown , it is neither in one of the specified tables nor defined by DATA statement. DATA statement. DATA statement.
Where am i going wrong?
plz help.
BR,
Annu.

Hi Jorge,
I am trying to use it in the method GET_LIST of class CL_SUS_M_ORDER_LIST .
If i use
event = cl_htmlb_manager=>get_event_ex( request ).
again i get the error Field REQUEST is unknown .
and if i dont declare event using data statement
data: event type ref to cl_htmlb_event .
then i get the error that Field EVENT is unknown.
My application is MVC pattern.
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Thaknks for the reply.

Calling method from another class

Got the below code for the Bank class with a log in system, Want i need is a While loop for
"While ValidUser = True, Do method in Accounts class."
package bank;
import javax.swing.*;
import java.lang.*;
public class Bank {
              /*User Arrays */
    public String Customer[]= new String[4];
    public String Pin[] = new String[4];
             /* User Tryed details */
        String User;
      String PinAuth;
Boolean ValidUser;
public Bank ()
              /*Customers */
          Customer[0]="John";
    Customer[1]="Alan";
    Customer[2]="Lisa";
    Customer[3]="Liam";
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    Pin[1]="1982";
    Pin[2]="4321";
    Pin[3]="5678";
public Bank(String CustAtt, String PinAtt)
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     PinAuth = PinAtt;
public String getUser()
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public String getPin()
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public void setUser(String CustAtt)
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public void setPin(String PinAtt)
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public static void main    (String args[] ){
System.out.println("Welcome to The Bank of Scotland");
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     PinAtt =
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/* Print USer Details */
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/* Authorise Customer */
Bank newBank = new Bank();
for(int i=0; i<4;i++)
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ValidUser=true;
else
ValidUser=false;
if(ValidUser=true)
System.out.println("Auth");
else if(ValidUser=false)
System.out.println("Log in details are in correct");
while(ValidUser=true)
Account Class, in this class i need options for selecting withdraw deposit and close account, not sure if i could do this in the Current account class though.
Any advice will be great package bank;
import javax.swing.*;
import java.lang.*;
public class Account {
private String AccountNo;
private int Balance;
private int Deposit;
String AccountUsed;
public Account () {
public String getAccountNo ()
return AccountNo;
public void setAccountNo (int val) {
AccountUsed = AccountNo;
public int getBalance () {
return Balance;
public void setBalance (int val) {
this.Balance = val;
public int getDeposit ()
return Deposit;
public void setDeposit (int val)
this.Deposit = val;
this.Balance=this.Balance+this.Deposit;
public void setWithdrawl (int val)
this.Balance=this.Balance-val;
public static void account (String args[] ){
String Deposit = new String();
String Withdraw = new String() ;
System.out.println("Deposit - Withdraw");
Account newAccount = new Account();
Deposit =
JOptionPane.showInputDialog("Enter the ammount you wish to deposit");
Withdraw =
JOptionPane.showInputDialog("Enter the amount you wish to Withdraw");
System.out.println(Deposit);
System.out.println(Withdraw);
Account custAccount =new Account();
custAccount.setDeposit(Integer.parseInt(Deposit));
custAccount.setWithdrawl(Integer.parseInt(Withdraw));
System.out.println(custAccount.getBalance());

Maxideon wrote:
All of these are valid,
while(validUser == true) {
while(validUser) {
//I prefer this one
if(validUser == true) {
if(validUser) {
//I prefer this one
} What you have,
if(validUser = true) {
if(validUser = false) {
}is different. I have two equal signs, while you have one. What do you think one equal sign does?
P.S. All your variable names are screwed up. They should begin with a lower case letter.
Edit
Some other anomalies: you declared ValidUser as a Boolean and you imported java.lang. .... Why?
Edit
Another weird thing.
String Deposit = new String();
String Withdraw = new String();?I Am fairly new to java, I have things "working" to an extent, and i am aware of the naming conventions over the variable names,

Calling a non-static method from another Class

Hello forum experts:
Please excuse me for my poor Java vocabulary. I am a newbie and requesting for help. So please bear with me! I am listing below the program flow to enable the experts understand the problem and guide me towards a solution.
1. ClassA instantiates ClassB to create an object instance, say ObjB1 that
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2. User selects a row in the table and then clicks a button on the icon toolbar
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(a). I could create a new instance ObjB2 of ClassB and call UpdateDatabase(),
                                  == OR ==
(b). I could declare UpdateDatabase() as static and call this method without
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object specific data.
With option (b), if I declare the method as static, the variables used in the method would also have to be static.
The variables, in which case, would not be object specific.
Is there a way or technique in Java that will allow me to reference the UpdateDatabase() method of the existing
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way?
Any ideas or thoughts will be of tremendous help. Thanks in advance.

Hello Forum:
Danny_From_Tower, Encephalatic: Thank you both for your responses.
Here is what I have done so far. I have a button called "btnAccept" created in the class MyMenu.
and declared as public.
public class MyMenu {
    public JButton btnAccept;
     //Constructor
     public MyMenu()     {
          btnAccept = new JButton("Accept");
}     I instantiate an object for MyMenu class in the main application class MyApp.
public class MyApp {
     private     MyMenu menu;
     //Constructor
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     public void openOrder(){
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}I pass this button all the way down to the class detail02. Now I want to set up a listener for this
button in the class detail02. I am not able to do this.
public class MyGUI {
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     public AppGUI(JButton iButton){
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public class detail02{
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Is this the right way? Or is there a better way of accomplishing my objective?
Please help. Your inputs are precious! Thank you very much for your time!

To access a method frm a class derived frm a base class with the same name

Here' s an example:-
class TestA {
public void start() {
System.out.println("TestA");
class TestB extends TestA {
public void start() {
System.out.println("TestB");
}In main method I do this:-
TestA testA = new TestA();
TestB testB = new TestB();
((TestA)testB).start();Output :-
TestB.
Now when i define the method as static :-
class TestA {
public static void start() {
System.out.println("TestA");
class TestB extends TestA {
public static void start() {
System.out.println("TestB");
}Then output is :-
TestA.
Can anyone let me know that when i say ((TestA)testB).start(); i.e i am type casting TestB obect to it base call then TestA should be printed but it doesn't print but when i declare method as static is does print TestA.
Thanks,
Heena

>
>
Secondly, when i say ((TestA).testB).start(); output is TestB. But when i define start() method as static output is TestA. I need clarity for the same.In the static case, all that the compiler is interested in is the class of the expression before the ".". Because you've put in an explicit cast the type of expression is assumed to be TestA the compiler doesn't know what kind of object will actually be referenced at runtime. In the static case which method is called is determined at compile time.
In the instance method case what determines the method called is determined the class of the actual, run time, value of the expression, and despite your cast, the actual value is still a reference to a TestB instance, so the TestB method is called. In the instance case which method called is determined at run time.

Invalid method declaration

Hi there,
I have a problem to compile below sentences.
import java.awt.* ;
import javax.swing.* ;
import java.awt.event.* ;
public class p662 extends JFrame
public ShowColors()
** invalid method declariration for ShowColors ****
super ("Using colors") ;
Please help me.
Best regards

What the diddley?
Your class name is p662 (what the heck is that?).
The declaration public ShowColors looks like a constructor. You call super in it with a String argument, which looks like you want to invoke a JFrame ctor.
You can't invoke a super class constructor in any method except a class constructor. The class constructors must have the same name as the class. The class must go in a file whose name is the same as the public class inside.
You should follow the Sun coding standards for naming:
http://java.sun.com/docs/codeconv/html/CodeConvTOC.doc.html
What are you doing here? This is unintelligible. - MOD

Synchronisation methods in same class

I have three methods in same class A,B,C IN which A,B synchronised and c not.
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jverd wrote:
Syncing a block on the object pointed to by X
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Declaring a non-static method synchronized is the same as doing synchronized (this) { /* do stuff */ }Calling a non-synced method or executing a non-synced block or statement does not wait for the lock.Duke-wh0ring?? :)

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Hi, I´ve been only study the posibility to access a method in the IMPL class from one context node class...CN## without using events, is there a way to call it ??? I don´t have it as requierement just learning thanks !.

Hi,
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try.
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catch cx_root.
endtry.
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Exporting parameter of type table in Method of a Class

Hi Experts,
I want to pass an internal table from my method in ABAP class to a workflow.
For thi spurpose i have cretaed a parameter of type table in the method.
My problem is that i am not able to bind this to a workflow/task container.
I can see all the other parameters of the method in thw workflow while binding except for the parameter of type table ( i.e internal table ).
Any idea ?
Thanks,
Radhika.

Assuming that you are trying to export the internal table from class method to task conatiner.
I have cretaed a Structure 'zemails' in se11
Already you have created a Structure in the SE11 , why don't you just create one Table Type of ZEMAILS in SE11. Once you hvae created in DDIC then in the class signature declare the ltmails of type the tabale type that you create. and then in the task conatiner also try to declare the container element with the same name and same table type.
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Apply static method requirements on class (Static interface methods)?

I have a set of classes where is class is identified with a unique ID number. So each class has a public static int getId() method. Each class also has either a constructor that takes a byte array or a static factory method that takes a byte array.
I would like to maintain a hashmap of these classes keyed to the ID's however I am not sure how to have some interface of abstract parent class that requires each of these classes to implement these static methods.
What I was hoping to do was something like this>>>
     public interface MyClasses{
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          map.put(Class2.getId(), Class2.class);
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What about something like this?
public interface Initializable
     public void initialize(byte[] data);
public class Factory
     private final Map<Integer, Initializable> map = new HashMap<Integer, Initializable>();
        public void registerClass(int id, Class klass)
                if (! Initializable.class.isAssignableFrom(klass))
                         // you may also want to ensure the class declares a parameterless constructor
                         throw new IllegalArgumentException("duff class");
                if (this.map.keySet().contains(id))
                         throw new IllegalArgumentException("duff id");
          this.map.put(id, klass);
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                i.initialize(data);
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Static methods in startup class

I have declared few static methods in startup class. What will happen
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          I will appreciate an urgent response.
          Thanks,
          SidShar .


SidShar,
          > I have declared few static methods in startup class. What will
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          > will the access to those static methods be clustered and
          > replicated across the clusters.
          No.
          > How exactly the startup class behaves in clustered environment.
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          force it to be otherwise.
          If you want to have something done once and only once in the cluster, or
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          Peace,
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com/coherence.jsp
          Tangosol Coherence: Clustered Replicated Cache for Weblogic
          "sidshar" <[email protected]> wrote in message
          news:[email protected]..
          >

BOR method "Returnparameter" on class

Hi all,
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Robert

What about something like this?
public interface Initializable
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        public void registerClass(int id, Class klass)
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          this.map.put(id, klass);
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Method declaration of an interface

Hi,
Here's an interface definition.
public interface Foo {
public Object getSomeObject(Object param);
What i want to find out is,
why do we need to specify a variable reference in the interface?
public interface Foo {
public Object getSomeObject(Object);//throws error.
Thank you.

Hi,
Here's an interface definition.
public interface Foo {
public Object getSomeObject(Object param);
What i want to find out is,
why do we need to specify a variable reference inthe
interface?
public interface Foo {
public Object getSomeObject(Object);//throwserror.
Thank you.The interface method is just a signature that all
classes implementing the interface must follow. Its
syntax requires that the variable reference is
included. There is no other reason. Its like the word
"bought" is spelt the way it is..It could have also
been splet as "bot" but that is incorrect.!!!
That is right.
It is just a signature. Also, it allows the compiler to perform its actions consistently, most of all, thereby not offering any special privileges to an interface method declaration. As we all know that the byte code representation of an 'interface type' is also a class.

Method declaration in Class

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