Pass the string as params from a Java application to another

I'm moving a String as a parameter to a Java Aplications of a second as a startup parameter

for example I have applications that must call start another Java application (just contains only JOptionPane, simple JFrame or JDialog) before System.exit (0); I'm trying to send some descriptions to close the application to another.

East of simulations of what these codes I tried this and in this form, the code works correctly and displays the string in the JTextArea...

import java.io.IOException;
    import java.util.concurrent.*;

    public class TestScheduler {

        public static void main(String[] args) throws InterruptedException {
            ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(10);
            executor.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
            executor.setExecuteExistingDelayedTasksAfterShutdownPolicy(true);
            for (int i = 0; i < 10; i++) {
                final int j = i;
                System.out.println("assign : " + i);
                ScheduledFuture<?> future = executor.schedule(new Runnable() {

                    @Override
                    public void run() {
                        System.out.println("run : " + j);
                    }
                }, 2, TimeUnit.SECONDS);
            }
            System.out.println("executor.shutdown() ....");
            executor.shutdown();
            executor.awaitTermination(10, TimeUnit.SECONDS);
            try {
                Process p = Runtime.getRuntime().exec("cmd /c start java -jar C:\\Dialog.jar 'Passed info'");
            } catch (IOException ex) {
                ex.printStackTrace();
            }
            System.out.println("System.exit(0) .....");
            System.exit(0);
        }

        private TestScheduler() {
        }
    }

//
import java.awt.*;
import java.util.ArrayList;
import javax.swing.*;

public class Main {

    private static ArrayList<String> list = new ArrayList<String>();

    public Main() {
        JFrame frm = new JFrame();
        JTextArea text = new JTextArea();
        if (list.size() > 0) {
            for (int i = 0; i < list.size(); ++i) {
                text.append(list.get(i));
            }
        }
        JScrollPane scroll = new JScrollPane(text,
                ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
                ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frm.add(scroll, BorderLayout.CENTER);
        frm.setLocation(150, 100);
        frm.setSize(new Dimension(400, 300));
        frm.setVisible(true);
    }

    public static void main(String[] args) {
        if (args.length > 0) {
            for (String s : args) {
                list.add(s);
                System.out.print(s + " ");
            }
        }
        Main m = new Main();
    }
}

My question:

whether is there another way to pass a value to a Java application (it should be called System.exit (0);) to another Java application, another way I tried using process/ProcessBuilder

My crospost http://stackoverflow.com/questions/6121990/pass-string-as-params-from-one-java-app-to-another

Yes, there are other ways. Is this way do not meet your needs?

1. There is another exec() signature that accepts an array where the first element is the command and the rest of the elements are its args. It may or may not be a varargs call. That looked something like this, but it might not work exactly as I.

exec("cmd", "/c", "start", "java", "-jar", "C:\\Dialog.jar", "Passed info");
// OR
exec(new String[] {"cmd", "/c", "start", "java", "-jar", "C:\\Dialog.jar", "Passed info"});

2. you can place the information in a file that the second process reads.

3. you can store information in a database that the second dealing with applications.

4. you can have a single process open a ServerSocket and either connect to it and send the data in this way.

5. you can use a higher level like Active MQ, JMS messaging tool, etc.

6. you can use the RMI.

7. you can use CORBA.

I don't know that there are other approaches as well.

I have no idea to the approach that is best for your needs. It's something that you need to understand, if you do decide, if you view details about your needs here, someone can offer some advice.

Tags: Java

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Wrote file afiedt.buf

  1  select *
  2  from emp
  3  where deptno in (
  4                  with t as (select '&dept_numbers' as txt from dual)
  5                  select REGEXP_SUBSTR (txt, '[^,]+', 1, level)
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old   4:                 with t as (select '&dept_numbers' as txt from dual)
new   4:                 with t as (select '10,20' as txt from dual)

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---------- ---------- --------- ---------- ------------------- ---------- ---------- ----------
      7369 SMITH      CLERK           7902 17/12/1980 00:00:00        800                    20
      7566 JONES      MANAGER         7839 02/04/1981 00:00:00       2975                    20
      7782 CLARK      MANAGER         7839 09/06/1981 00:00:00       2450                    10
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Wrote file afiedt.buf

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  4      from emp
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  6                       select REGEXP_SUBSTR (p_deptnos, '[^,]+', 1, level)
  7                       from dual
  8                       connect by level <= length(regexp_replace(p_deptnos,'[^,]*'))+1
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 10  begin
 11    for e in cur_emps('10,20')
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 13      dbms_output.put_line(e.empno||' - '||e.ename||' : '||e.deptno);
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7369 - SMITH : 20
7566 - JONES : 20
7782 - CLARK : 10
7788 - SCOTT : 20
7839 - KING : 10
7876 - ADAMS : 20
7902 - FORD : 20
7934 - MILLER : 10

PL/SQL procedure successfully completed.

SQL>

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