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Ways to iterate over a list in Java
Being somewhat new to the Java language I'm trying to familiarize myself with all the ways (or at least the non-pathological ones) that one might iterate through a list (or perhaps other collections) and the advantages or disadvantages of each.
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Correct way to close nested streams and writers in Java [duplicate]
Note: This question and most of its answers date to before the release of Java 7. Java 7 provides Automatic Resource Management functionality for doing this easilly. If you are using Java 7 or later you should advance to the answer of Ross Johnson .
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Convert a JSON String to a HashMap
I'm using Java, and I have a String which is JSON:
18 Answers
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When to catch java.lang.Error?
In what situations should one catch java.lang.Error on an application?
16 Answers
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Solving a “communications link failure” with JDBC and MySQL [duplicate]
...number
interactive_timeout = number
connect_timeout = number
Make sure Java isn't translating 'localhost' to [:::1] instead of [127.0.0.1]
Since MySQL recognizes 127.0.0.1 (IPv4) but not :::1 (IPv6)
This could be avoided by using one of two approaches:
Option #1: In the connection string us...
Does use of final keyword in Java improve the performance?
In Java we see lots of places where the final keyword can be used but its use is uncommon.
13 Answers
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Why java.lang.Object is not abstract? [duplicate]
Why is the Object class, which is base class of 'em all in Java, not abstract?
14 Answers
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Is there a Java reflection utility to do a deep comparison of two objects?
...quality assertion through reflection, with different options like ignoring Java default/null values and ignoring order of collections
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Learning Ant path style
... test to the filename variable
http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/util/AntPathMatcher.html
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How do I check CPU and Memory Usage in Java?
I need to check CPU and memory usage for the server in java, anyone know how it could be done?
15 Answers
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