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Is it expensive to use try-catch blocks even if an exception is never thrown?
...to catch exceptions. But, is it also expensive to use a try-catch block in Java even if an exception is never thrown?
7 An...
Java associative-array
How can I create and fetch associative arrays in Java like I can in PHP?
15 Answers
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Coding Conventions - Naming Enums
Is there a convention for naming enumerations in Java?
7 Answers
7
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Is Java's assertEquals method reliable?
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You should always use .equals() when comparing Strings in Java.
JUnit calls the .equals() method to determine equality in the method assertEquals(Object o1, Object o2).
So, you are definitely safe using assertEquals(string1, string2). (Because Strings are Objects)
Here is a link ...
How to create a file in a directory in java?
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With Java 7, you can use Path, Paths, and Files:
import java.io.IOException;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
public class Create...
How does Java handle integer underflows and overflows and how would you check for it?
How does Java handle integer underflows and overflows?
12 Answers
12
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Class JavaLaunchHelper is implemented in both. One of the two will be used. Which one is undefined [
...ogle App Engine Web Application Project on Eclipse Kepler on Mac OS X with java version "1.7.0_45"
2 Answers
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How can I get a java.io.InputStream from a java.lang.String?
I have a String that I want to use as an InputStream . In Java 1.0, you could use java.io.StringBufferInputStream , but that has been @Deprecrated (with good reason--you cannot specify the character set encoding):
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What is the equivalent of the C++ Pair in Java?
Is there a good reason why there is no Pair<L,R> in Java? What would be the equivalent of this C++ construct? I would rather avoid reimplementing my own.
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Long vs Integer, long vs int, what to use and when?
...e you need to make use of methods inherited from Object, such as hashcode. Java.util.collections methods usually use the boxed (Object-wrapped) versions, because they need to work for any Object, and a primitive type, like int or long, is not an Object.
Another difference is that long and int are p...