First of all, I am very basic at java. I am trying to browse a .txt file and load the contents of it, into the text area. I am completed the part, till which I receive the file from the JFileChooser, now I dont know how to do the remaining. Answer Use the read(…) and write(…) methods that are supp…
Tag: java
A GUI editor for Java that can manipulate objects on RUNTIME [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations. Closed 2 years ago. Improve this ques…
Count words in a string method?
I was wondering how I would write a method to count the number of words in a java string only by using string methods like charAt, length, or substring. Loops and if statements are okay! I really appreciate any help I can get! Thanks! Answer
Is Java’s Swing really a “memory hog”?
I frequently hear that Java’s Swing toolkit is considered a “memory hog” (such as this answer). Is this… A due to Swing’s architecture; B inherent in Java’s memory management; or C an unfounded claim that stems from a lack of understanding how memory allocation works (e.g. …
What is the difference between JDBC and JDBI?
I want to know about the differences between JDBC and JDBI in java. In particular, which one is generally better and why? Answer (I am the primary author of jDBI) jDBI is a convenience library built on top of JDBC. JDBC works very well but generally seems to optimize for the database vendors (driver writers) …
Obtain ordered vertices of GeneralPath
How can I obtain the vertices of a GeneralPath object? It seems like this should be possible, since the path is constructed from points (lineTo, curveTo, etc). I’m trying to create a double[][] of point data (an array of x/y coordinates). Answer You can get the points back from the PathIterator. I’…
How can I cast a Long to an int in Java?
Eclipse is marking this line with the error: Can not cast Long to an int Answer Use primitive long You can’t cast an Object (Long is an Object) to a primitive, the only exception being the corresponding primitive / wrapper type through auto (un) boxing If you must convert a Long to an int, use Long.intV…
Mockito/PowerMock: how to reset a mocked static variable in SUT?
I hate to introduce Unit-tests into a legacy code base, but I have to. Up untill now I successfully introduced unit-testing into the legacy code base using Mockito and PowerMock. Worked perfectly well until I met with this situation: in the SUT, there’re several static varibles (which I mocked with the …
Java Properties backslash
I am using Java Properties to read a properties file. Everything is working fine, but Properties silently drops the backslashes. (i.e.) How do I make Properties not do this? I am using the code prop.getProperty(key) I am getting the properties from a file, and I want to avoid adding double backslashes Answer …
Java socket.io client
Is there any Socket.IO-client available for Java? So far I have only found the official Socket.IO client which is only available for JavaScript and socket.io-java which is only the server. Answer Limited options at this time: http://code.google.com/p/weberknecht/ https://github.com/TooTallNate/Java-WebSocket …