Getting List Of Apps In Java
Aug 13, 2014
I want a list of all running application in my java code.I got list of all the running processes by my code but I dont want that. I want only main Application. Like if two application are running in my pc then I should get only those application's Name.
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Nov 25, 2014
I have 2 different apps, one of them is a java desktop app and the other one is a c# web app. which uses java applet in order to e-sign. The problem is desktop java app requires 1.5.0_14 and on the other hand web app. requires 1.7 and higher version of java.
I installed both java 1.5 and 1.7 versions on my PC. In order to run desktop java app., I go to C:Progra~2Javajre1.5.0_14in and run javacpl to disable 1.7 and enable 1.5. Then I make a shortcut to javaws 1.5.0_14 to my desktop and add the jnlp of this java app to the target of javaws shortcut. After those settings, the java desktop app. runs.
Now I need to also run the web app which requires 1.7 java. In order to run this app. properly Java 1.5 should be disabled, 1.7 enabled on the Java Control Panel settings. Problem is when you run this web app. the settings for 1.5.0_14 breaks down, I mean all of the java versions become enabled in javacpl under C:Progra~2Javajre1.5.0_14in directory. If I restart my PC, I need to reset the java versions. Is there a way to make this happen without a pain in the head?
By the way, I tried to use batch files etc. but not succeded.
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Apr 10, 2015
I'm deploying Java 8 update 40 to my users and want to know if there's a way to manage sites that prompt the user with warnings about untrusted and unsigned applets?
i'm using the exception.sites file to manage applicable prompts/warnings for our internal sites, but doesn't look like the exception list works for untrusted and unsigned.
is there a way to manage these from an all users level, particularly with a deployment (ie, SCCM)?
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Jan 9, 2014
my IDE doesn't seem to recognize that my program is a Swing app.I get the following error message when I run the app: "jtabledemo.JTableDemo class wasn't found in JTableDemo project."It compiles successfully though.Here is the code verbatim:
package jtableDemo;
// Demonstrate JTable.
import java.awt.*;
import javax.swing.*;
/*
<applet code="JTableDemo" width=400 height=200>
[code]....
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May 6, 2014
We can write JavaFX application in JavaScript using Nashorn Engine, but you have to run application with command line like:
> jjs app_all.js -fx
So I wont know how can I deploy application that let you click on and lunch application or make it self-contained application packaging using package tools of JDK 7 Update 6 or later.
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Mar 14, 2014
Generally sessions in web applications expire after a stipulated max inactive interval. To my knowledge primarily the reason is if the session objects are not invalidated they keep exhausting the memory. So my question is
A. Is there any other reason other why web applications timeout the user session after an inactive interval?
B. Social sites never timeout the user session even if you just leave them for the entire day. How do they manage sessions? Don't the active sessions exhaust memory on their servers or JVM to be specific?
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Jan 30, 2014
can we list the domains by connecting with the net using java...
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Apr 12, 2014
I am creating a recursive method to reverse a linked list in java. It works the first time when I call it, but I want it to work where I call it a second time and it reverses it to the original state. How can I get that to work with this implementation?
public void reverseList() {
System.out.printf("%-16s%-3s%n", "Name", "Score");
System.out.println("--------------- -----");
reverseList(first);
} public void reverseList(Node aNode) {
if (aNode != null) {
reverseList(aNode.next);
System.out.printf("%-15s%6s%n" , aNode.name , aNode.score);
}
}
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Oct 16, 2014
One of my assignments was to make a program that would read a sequence of names and then list them all.Just to be clear, it would read them all first, and then it would list them all at the same time.
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Jun 26, 2014
How to create a unmodifiable/read-only list in Java?
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Apr 28, 2014
I'm making an application that will allow users to view several displays simultaneously. I'm trying to make it so that the user should be able to select one of the items from a list then hit a radio button add them to the display. And there will be a second button to remove them from the display. Oh and there will always be alteast one display.
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Apr 6, 2014
I am creating a josephus java program with a circular linked list.This is what the methods are suppose to do
a. size(): Returns the number of items in the list.
b. isEmpty(): Returns true if the list is empty and false otherwise
c. advance(): Moves the cursor from the current position to the next item. If the cursor is at the end (tail) of this list, calling advance() should make the cursor refer to the first element in the list. If the list is empty, this operation should have no effect.
d. getCurrent(): Return the String value in the node referenced by the cursor unless the CircularLL is empty in which case write an error message to System.err.
e. add(String data): Adds a new item to the list by creating a newNode and linking it to the end of the circular linked list. The last node should point to the new node and then you should make lastNodeInserted point to new node as well.) Please note that a circular linked list is always circular. The last node should point to the beginning node. When there is only one node in a CircularLL, its next should point to itself. This method updates currNode when the first node is added, and always updates lastNodeInserted and numNodes. Take care when adding the first node this is a special case and should be handled differently.
f. remove(): If the list is empty, write an error message to System.err indicating that an attempt was made to remove from an empty queue and return null. Assuming the list is't empty, this method removes the node currently referenced by the cursor, reassigns the cursor to point to the next node in the list, and returns the String value stored in that node. To keep the list linked, you'll need to locate the previous node to the one youre removing and connect its next to the node which follows the one youre removing. Create a local Node variable (prev) to find it. Consider and handle the special case when there is only one node and youre removing it. And make sure to update lastNodeInserted whenever you remove the node that it is pointing to.
g. toString(): This should return a String representation of the circular linked list, with the first value displayed being the data of the first node added (not the data in the last node).
public class CircularLL {
private class Node {
String data;
Node next;
public Node(String data) {
this.data = data;
this.next = null;
[code].....
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Jun 26, 2014
I am a java fresher, How to create a unmodifiable/read-only list in Java?
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Dec 11, 2014
I've playing around with linked lists and methods for sorting. So far I've tested the iterative sort, insertion sort, quick sort and they all worked perfectly. Now, I am trying to implement merge sort that would take a linked list of jobs and sort them according to their priority. I found a few solutions on the web, of which I am trying to implemented this one: LeetCode.
My system is a simple one, I do have a linked list of print jobs, each of which has the priority. The following code should sort my print queue and return the link node of the first sorted element. Here's the code.
//defining a job that has priority
public class Job {
private int priority;
[Code]....
The problem I've been trying to solve is that I am getting the stack overflow at line
ListNode<T> h1 = mergeSort(left);
meaning that I am getting into a loop somewhere down through the process of breaking the linked list into half, half or halfs and so on.
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Sep 3, 2014
I am following those three tutorials and I have completed it with success.
( [URL] .... )
( [URL] .... )
( [URL] .... )
But then, as author haven't implemented removeCountries method I tried to create it. What I did initially was to just add to class Countries this method:
public boolean removeCountry(Country country) {
return countries.remove(country);
}
But although compiler wasn't complaining it didn't work. Actually it worked last night (before reboot) but not today. Must be some SOAP iterator/binding thing or whatever. Or I thought that it worked but in fact it didn't.
Here are original classes:
//-------------------------------
public class Country {
String CountryId;
String CountryName;
public Country() {
super();
[Code] ....
I would like to avoid my own iterator as JDeveloper can generate automatically iterators for webservices, but if I can't get it that way, what would be better way to write above mentioned iterator in removeCountry method?
Is there any way to remove object directly with something like this:
co.countries.remove(o);
co.removeCountry(country)
using method
// This left unused
public boolean removeCountry(Country country) {
return countries.remove(country);
}
from class Countries?
Parameters should be set by web service iterator.
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Aug 1, 2011
I would like to know how I can get the list of installed JCA adapters from my application which deployed onto WebLogic server. Is there any WebLogic api available for that?
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Feb 14, 2014
I have some class called sorted to sort the linked list through the nodes of the list. and other class to test this ability, i made object of the sort class called "list1" and insert the values to the linked list.
If i make other object called "list2" and want to merge those two lists by using method merge in sort class. And wrote code of
list1.merge(list2);
How can the merge method in sort class know the values of list1 that called it as this object is created in other class.
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Jan 2, 2015
i'm using eclipse Kepler to create J2EE project.i created student class which return list of information. how to access list in JSP page??
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Dec 23, 2013
As the JRE environments and usage of applets has become more and more secure in through the evolution of enhancements to the JRE we have noticed a performance degradation in usage of these applets and launching of them.
As our customers are in the business to business environment they utilize our applets that are delivered from the server to the client. We are looking at ways to reduce the time to validate that the certificates are still valid. we are looking for ways to provide a means for our customers to validate against a CRL on our server or to cache the the checks against the OCSP so that not each and every client accessing our server needs to go out to the third party sites to get the checks completed.
Is there a means to store this information on our server and have the JRE validate against that system rather than the normal OSCP...
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Apr 22, 2015
I have a list of 100,000 + names and I need to append to that list another 100,000 names. Each name must be unique. Currently I iterate through the entire list to be sure the name does not exist. As you can imagine this is very slow. I am new to Java and I am maintaining a 15+ year old product. Is there a better way to check for an existing name?
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Apr 2, 2014
When I am watching scjp mock test, I am getting error about security.
I am trying to add www.javaranch.com to site exception list in java control panel. I can see security tab in java control panel, there I find field for Site Exception List. When I am add [URL] .... to this site exception list, list is not getting populated.
Why is that ? Why am I unable to add this site to list ?
I am using 64-bit system and have downloaded and installed 64 bit update patch 51.
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May 21, 2015
I am trying to write a java program that asks the user for a list of names (one per line) until the user enters a blank line. At that point the program should print out the list of names entered, where each name is listed only once (i.e., uniquely) no matter how many times the user entered the name in the program. I am supposed to use an ArrayList for this problem.
My idea for a solution is to create an ArrayList<String>, read each name, i.e., line, entered and then to see if that name is already in the ArrayList. I created a for loop to check each element in the ArrayList but when I try to assign an element to a string variable I get the error "Type mismatch: cannot convert from Object to String". Not sure why that is happening because the ArrayList is defined as a String list.
Here is the code so far.
/*
* File: UniqueNames.java
*/
import acm.program.*;
import java.util.*;
[Code].....
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Mar 30, 2015
Have a user who cannot access a file on website for work he needs to do. He gets these errors:
His Java is the latest and I have already added the site to the exceptions list in, Java and the browser, but I can't get through.
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Sep 12, 2014
I have the following double linked list and I'm supposed to order it descending (reverse) using the printInReverse() method; since the list orders itself ascending when the numbers are added, how could I order it descending in this method? Here's the code without implementing descending/reversing methods:
package test;
import java.util.Scanner;
public class MyList {
private Scanner userInput;
private Integer selectedOption;
private MyListElement firstElement = null;
private boolean exitRequested = false;
[Code] ....
I tried to declare a previousElement variable but I didn't figure out how I'd do that.
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Jul 27, 2014
I'm trying to build a program that contains the ability to:
(1) insert new node at head,
(2) print out contents of the list in order,
(3) remove first node from head,
(4) remove last node from tail,
(5) find a target value,
(6) give total number of occurrences of a target value, and
(7) give total number of items in list.
The areas I'm struggling with implementing are: (
- remove from tail - I know how to find the final node but I can't quite figure out how to set it to null since its initial type is an integer.
- find a target value - how to make the parameters quite workout so the user can simply input an integer value.
- The solution is probably really simple but I can't figure out how to print out the results of these methods when I call them.
public class Node
{
private int data;
private Node link;
// Node Constructor 1
public Node()
{
data = 0;
link = null;
[code]....
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Jul 19, 2012
How to get the client windows login name in server using JAVA those who access the site? I used the following code, but im getting only local machine name . getRemoteUser() is returning null value. I am using tomcat server. Is there anything to do with windows IIS configuration??
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String clientIP = request.getRemoteAddr();
//
// Get client's host name
//
String clintHost = request.getRemoteHost();
[Code] ....
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