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How to create a directory in Java?
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After ~7 year, I will update it to better approach which is suggested by Bozho.
new File("/path/directory").mkdirs();
Deprecated:
File theDir = new File("new folder");
// if the directory does not exist, create it
if (!theDir.exists()) {
System.out.println("creating direc...
how to debug the js in jsfiddle
I am looking at this jsfiddle: http://jsfiddle.net/carpasse/mcVfK/
It works fine that is not the problem , I just want to know how to debug through the javascript. I tried to use the debugger command and I cant find it in the sources tab?
any idea how I can debug this?
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Why are function pointers and data pointers incompatible in C/C++?
...ction pointer to a data pointer and vice versa works on most platforms but is not guaranteed to work. Why is this the case? Shouldn't both be simply addresses into main memory and therefore be compatible?
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How do I check if file exists in Makefile so I can delete it?
In the clean section of my Makefile I am trying to check if the file exists before deleting permanently. I use this code but I receive errors.
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javascript regex - look behind alternative?
Here is a regex that works fine in most regex implementations:
6 Answers
6
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Call a stored procedure with parameter in c#
...you will use that instead of da.InsertCommand.
Also, use a using for all disposable objects, so that you are sure that they are disposed properly:
private void button1_Click(object sender, EventArgs e) {
using (SqlConnection con = new SqlConnection(dc.Con)) {
using (SqlCommand cmd = new SqlC...
Placeholder in UITextView
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edited Mar 25 '16 at 11:21
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Checkstyle vs. PMD
We are introducing static analysis tools into the build system for our Java product. We are using Maven2 so Checkstyle and PMD integration come for free. However it looks like there is a large overlap in functionality between these two tools, in terms of enforcing basic style rules.
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java.lang.OutOfMemoryError: Java heap space
... would recommend profiling your application to find out why your heap size is being eaten. NetBeans has a very good profiler included with it. I believe it uses the jvisualvm under the hood. With a profiler, you can try to find where many objects are being created, when objects get garbage collected...
PostgreSQL ERROR: canceling statement due to conflict with recovery
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Running queries on hot-standby server is somewhat tricky — it can fail, because during querying some needed rows might be updated or deleted on primary. As a primary does not know that a query is started on secondary it thinks it can clean up (vacuum) old versi...