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Generating all permutations of a given string
... be replaced by str.substring(i+1). Using str.substring(i) will cause java.lang.StackOverflowError.
– Ayusman
Aug 7 '13 at 7:25
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show 17 mo...
Why there is no ForEach extension method on IEnumerable?
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There is already a foreach statement included in the language that does the job most of the time.
I'd hate to see the following:
list.ForEach( item =>
{
item.DoSomething();
} );
Instead of:
foreach(Item item in list)
{
item.DoSomething();
}
The latter is clea...
How to capitalize the first character of each word in a string
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this code caused our server to crash:java.lang.StringIndexOutOfBoundsException: String index out of range: 0
– Chrizzz
Apr 9 '14 at 12:38
34
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Stream vs Views vs Iterators
... part of the documentation... oh, actually it is! Thanks Daniel docs.scala-lang.org/tutorials/FAQ/stream-view-iterator.html
– Svend
Jul 25 '14 at 12:57
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JUnit tests pass in Eclipse but fail in Maven Surefire
...version I was using) because it prints out the assertion error, e.g.
java.lang.AssertionError: null
at com.company.sdk.components.schema.views.impl.InputViewHandler.<init>(InputViewHandler.java:26)
at test.com.company.sdk.util.TestSchemaExtractor$MockInputViewHandler.<init>(Test...
Why is Class.newInstance() “evil”?
...API documentation explains why (http://java.sun.com/javase/6/docs/api/java/lang/Class.html#newInstance()):
Note that this method propagates any exception thrown by the nullary constructor, including a checked exception. Use of this method effectively bypasses the compile-time exception checking ...
Coding Conventions - Naming Enums
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C# is an otherwise great language, but this is just plain silly. Everything is pretty much pascal case in C#, which is basically the same as having no naming conventions at all; you gain nothing by looking at a name. You can't tell if it's a class, m...
Regexp Java for password validation
...ke your approach above. Thank you for that!
– Thomas Lang
Dec 20 '18 at 7:21
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How to parse JSON in Java
...jvm-serializers, github.com/novoj/JavaJsonPerformanceTest or developer.com/lang/jscript/… -- I have not seen this library included in tests, or mentions of it being widely used.
– StaxMan
Oct 24 '14 at 5:12
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Getting “unixtime” in Java
...ssion (clarified above) was about the data type. Primitive "long" vs "java.lang.Long" class instance. You're talking about the suffix letter on the long literal, which I agree can be upper or lower case. Though lower case "l" looks a heck of a lot like the digit "1" so it's much more readable to us...