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Top Questions
233
votes
When do Java generics require <? extends T> instead of <T> and is there any downside of switching?
java
generics
junit
asked May 22 '09 at 13:48
stackoverflow.com
107
votes
Is SecureRandom thread safe?
java
thread-safety
asked Sep 22 '09 at 17:53
stackoverflow.com
72
votes
Should an abstract class have a serialVersionUID
java
serialization
abstract-class
serialversionuid
asked May 21 '09 at 14:37
stackoverflow.com
65
votes
How do you drop a default value from a column in a table?
sql-server-2005
tsql
asked Sep 1 '09 at 20:38
stackoverflow.com
58
votes
Does a natural comparator exist in the standard api?
java
comparator
comparable
asked Jul 13 '10 at 20:09
stackoverflow.com
50
votes
How do I explain 2 to the power of zero equals 1 to a child
arithmetic
teaching
asked Nov 10 '10 at 14:22
math.stackexchange.com
33
votes
Understanding C# field initialization requirements
c#
initialization
asked Dec 15 '14 at 19:15
stackoverflow.com
31
votes
Why are regular expressions greedy by default?
regex
language-design
regex-greedy
asked Feb 16 '10 at 17:44
stackoverflow.com
30
votes
Bad path warning, where is it coming from?
java
compiler-warnings
asked Aug 27 '09 at 22:58
stackoverflow.com
23
votes
What is a good DHCP lease timeout configuration
dhcp
asked Mar 25 '11 at 13:52
serverfault.com
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Top Answers
515
Conditionally ignoring tests in JUnit 4
stackoverflow.com
408
How to read XML using XPath in Java
stackoverflow.com
338
AssertContains on strings in jUnit
stackoverflow.com
301
Difference between using Throwable and Exception in a try catch
stackoverflow.com
277
How can I get the current stack trace in Java?
stackoverflow.com
193
How do I sort a list by different parameters at different timed
stackoverflow.com
134
Easy way of running the same junit test over and over?
stackoverflow.com
128
What is the difference between Strategy design pattern and State design pattern?
stackoverflow.com
118
Allowing Java to use an untrusted certificate for SSL/HTTPS connection
stackoverflow.com
110
What is <? super T> syntax?
stackoverflow.com
104
Correct way to initialize HashMap and can HashMap hold different value types?
stackoverflow.com
100
assert vs. JUnit Assertions
stackoverflow.com
99
Is there a way to retrieve the autoincrement ID from a prepared statement
stackoverflow.com
97
JUnit expected tag not working as expected
stackoverflow.com
91
How do I replace a character in a string in Java?
stackoverflow.com
83
When to use Comparable and Comparator
stackoverflow.com
82
Java: Instanceof and Generics
stackoverflow.com
80
Getting value of public static final field/property of a class in Java via reflection
stackoverflow.com
75
Java synchronized method lock on object, or method?
stackoverflow.com
69
Error setting a default null value for an annotation's field
stackoverflow.com
68
Calling remove in foreach loop in Java
stackoverflow.com
65
Using "this" with class name
stackoverflow.com
64
How to convert object array to string array in Java
stackoverflow.com
60
Which concurrent Queue implementation should I use in Java?
stackoverflow.com
57
What is the difference between google's ImmutableList and Collections.unmodifiableList ()?
stackoverflow.com
55
Is it possible in Java to access private fields via reflection
stackoverflow.com
55
Java io ugly try-finally block
stackoverflow.com
55
Any reason to clean up unused imports in Java, other than reducing clutter?
stackoverflow.com
53
clone() vs copy constructor vs factory method?
stackoverflow.com
51
Simulate touch command with Java
stackoverflow.com
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