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What is the difference between Class Path and Build Path
...or building your application. It contains all of your source files and all Java libraries that are required to compile the application.
The classpath is used for executing the application. This includes all java classes and libraries that are needed to run the java application. A Classpath is manda...
Java FileReader encoding issue
I tried to use java.io.FileReader to read some text files and convert them into a string, but I found the result is wrongly encoded and not readable at all.
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Why is no one using make for Java?
Just about every Java project that I've seen either uses Maven or Ant. They are fine tools and I think just about any project can use them. But what ever happened to make ? It's used for a variety of non-Java projects and can easily handle Java. Sure you have to download make.exe if you use Win...
Javadoc: package.html or package-info.java
When trying to create package level Javadoc comments, whats the preferred method? What do you do?
1 Answer
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Eclipse: Exclude specific packages when autocompleting a class name
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Window->Preferences->Java->Appearance->Type Filters
You should be able to specify there the packages you do not want to see.
See Java Tips and Tricks
To exclude certain types from appearing in content assist, use the type filter fe...
Large Numbers in Java
How would I go about doing calculations with extremely large numbers in Java?
6 Answers
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java.util.regex - importance of Pattern.compile()?
...);
}
}
If you're familiar with .NET regexes, you may be wondering if Java's compile() method is related to .NET's RegexOptions.Compiled modifier; the answer is no. Java's Pattern.compile() method is merely equivalent to .NET's Regex constructor. When you specify the Compiled option:
Regex r...
How can I iterate through the unicode codepoints of a Java String?
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Yes, Java uses a UTF-16-esque encoding for internal representations of Strings, and, yes, it encodes characters outside the Basic Multilingual Plane (BMP) using the surrogacy scheme.
If you know you'll be dealing with characters ...
Java system properties and environment variables
... to access. System environment variables are accessible by any process and Java system properties are only accessible by the process they are added to.
Also as Bohemian stated, env variables are set in the OS (however they 'can' be set through Java) and system properties are passed as command line ...
Separation of JUnit classes into special test package?
...t, but in a different physical directory, like:
myproject/src/com/foo/Bar.java
myproject/test/com/foo/BarTest.java
In a Maven project it would look like this:
myproject/src/main/java/com/foo/Bar.java
myproject/src/test/java/com/foo/BarTest.java
The main point in this is that my test classes ca...