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C++ performance vs. Java/C#
...e to run on a particular machine architecture. Conversely, languages like Java and C# run on top of a virtual machine which abstracts away the native architecture. Logically it would seem impossible for Java or C# to match the speed of C++ because of this intermediate step, however I've been told ...
how to check the jdk version used to compile a .class file [duplicate]
...or this on the command line (for a class called MyClass):
On Unix/Linux:
javap -verbose MyClass | grep "major"
On Windows:
javap -verbose MyClass | findstr "major"
You want the major version from the results. Here are some example values:
Java 1.2 uses major version 46
Java 1.3 uses major v...
Can Java 8 code be compiled to run on Java 7 JVM?
Java 8 introduces important new language features such as lambda expressions.
5 Answers
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How do I get java logging output to appear on a single line?
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As of Java 7, java.util.logging.SimpleFormatter supports getting its format from a system property, so adding something like this to the JVM command line will cause it to print on one line:
-Djava.util.logging.SimpleFormatter.form...
Questions every good Java/Java EE Developer should be able to answer? [closed]
...of this question, and so in the same spirit, I am asking this question for Java/Java EE Developer.
35 Answers
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What is “String args[]”? parameter in main method Java
I'm just beginning to write programs in Java. What does the following Java code mean?
16 Answers
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How to create Java gradle project
How to create Java Gradle project from command line?
7 Answers
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Differences between Java 8 Date Time API (java.time) and Joda-Time
I know there are questions relating to java.util.Date and Joda-Time. But after some digging, I couldn't find a thread about the differences between the java.time API (new in Java 8 , defined by JSR 310 ) and Joda-Time .
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Closure in Java 7 [closed]
What is closure? It is supposed to be included in Java 7. (Closures were discussed for inclusion in Java 7, but in the end were not included. -ed) Can anyone please provide me with some reliable references from where I can learn stuff about closures?
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Declaring an unsigned int in Java
Is there a way to declare an unsigned int in Java?
11 Answers
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