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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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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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How to create Java gradle project
How to create Java Gradle project from command line?
7 Answers
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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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Increase heap size in Java
...o worry if you've chosen incorrectly, if you ask for 5g on a 32 bit system java will complain about an invalid value and quit.
As others have posted, use the cmd-line flags - e.g.
java -Xmx6g myprogram
You can get a full list (or a nearly full list, anyway) by typing java -X.
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java.lang.OutOfMemoryError: Java heap space
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If you want to increase your heap space, you can use java -Xms<initial heap size> -Xmx<maximum heap size> on the command line. By default, the values are based on the JRE version and system configuration. You can find out more about the VM options on the Java websit...