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#ifdef #ifndef in Java
I doubt if there is a way to make compile-time conditions in Java like #ifdef #ifndef in C++.
8 Answers
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What is the difference between the add and offer methods in a Queue in Java?
Take the PriorityQueue for example http://java.sun.com/j2se/1.5.0/docs/api/java/util/PriorityQueue.html#offer(E)
8 Answe...
How can I find and run the keytool
...und a solution by myself as below quote. It works fine.
"C:\Program Files\Java\jdk1.6.0_26\bin\keytool.exe" -exportcert -alias
> sociallisting -keystore "D:\keystore\SocialListing" |
> "C:\cygwin\bin\openssl.exe" sha1 -binary | "C:\cygwin\bin\openssl.exe"
> base64
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How do I generate random integers within a specific range in Java?
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In Java 1.7 or later, the standard way to do this is as follows:
import java.util.concurrent.ThreadLocalRandom;
// nextInt is normally exclusive of the top value,
// so add 1 to make it inclusive
int randomNum = ThreadLocalRan...
Access to private inherited fields via reflection in Java
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This should demonstrate how to solve it:
import java.lang.reflect.Field;
class Super {
private int i = 5;
}
public class B extends Super {
public static void main(String[] args) throws Exception {
B b = new B();
Field f = b.getClass().getSuperclas...
Execute another jar in a Java program
I had written several simple java applications named as A.jar, B.jar.
6 Answers
6
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Easiest way to convert a List to a Set in Java
What is the easiest way to convert a List to a Set in Java?
16 Answers
16
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How can I get the latest JRE / JDK as a zip file rather than EXE or MSI installer? [closed]
...e to be sure that everything will work just by copying the contents of the Java folder and setting the environment variables.
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Get current batchfile directory
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Dan Dascalescu
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answered Jun 12 '13 at 11:13
StolegStol...
Most efficient way to increment a Map value in Java
...time taken (in clock seconds) essentially using Ian Darwin's method in the Java Cookbook.
performed all five tests in series, and then did this another three times.
averaged the four results for each method.
Results
I'll present the results first and the code below for those who are interested.
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