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I would like to know how to use java agent and how to install java agent.
I handle for the first time java agent.
So they are not familiar.
So please explain in detail.
Presuming that you actually mean agents as in instrumentation, check this tutorial:
http://www.javabeat.net/introduction-to-java-agents/
it will give you a quick start in writing your first agents and set up everything you need to get started.
Just on a side note: if you want specific, detailed answers, ask specific, detailed questions.
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I am trying to convert my java program, TextFileAnalyzer, to a standalone application. I am not sure how to go about this I have done research and did not find anything helpful. If someone could get me in the right direction that would be awesome! Thanks.. Here is my program for reference:
You don't say what platform(s) you are targeting, or if you need to ship a complete executable. But, there are a few cross-platform Java wrappers. A common one is Launch4J.
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I want to profile a Java code programmatically in Java. I have searched the internet about tutorials but in vain. All that I've come across is how to profile a Java code using a third party application. It would be of great help if you guys can suggest some profiling API in Java and how to use it.
JProfiler has an API for profiling where the results are directly accessible from the API - no GUI required.
See the api/samples/platform example in the installation directory and the javadoc in api/javadoc.
Disclaimer: My company develops JProfiler.
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This may sound really silly but there is a whole documentation of the libraries and classes in java and I am trying to learn how to use this to write programs since I don't want to refer to someone else code but I was completlely lost when I look at the documentation online: http://docs.oracle.com/javase/7/docs/api/
Can someone please help me understand how i can use this?
I think you need to go up one level and look at tutorials first: http://docs.oracle.com/javase/tutorial/. Once you understand the basics of Java, then you can use the API reference to find the classes and methods you need.
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I made a simple Java program using a JFrame. I want to know how is it called or what type it is. Maybe is it an API? Maybe a form?
If a ask something about my simple Java program
in a forum, I would like to do it properly! I used Eclipse.
Your wording is unclear, so I'm not exactly sure what you're asking. But it seems like that would just be called a Java desktop application.
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I am trying to figure out how they created all of the methods in java, because w/o these objects we wouldn't be able to do much. If there is any website you could link me, it would be much appreciated. & sorry if i am off topic.
http://grepcode.com/snapshot/repository.grepcode.com/java/root/jdk/openjdk/7-b147/
Here you can see the source code for all the standard library. For example, the String class:
http://grepcode.com/file_/repository.grepcode.com/java/root/jdk/openjdk/7-b147/java/lang/String.java/?v=source
I think the entire source for the standard lib also comes with the JDK, in some folder somewhere, but I don't remember.
Of course the standard library is not all that makes java, because you also have the JVM. But since you're talking about objects, I guess that's what you want.