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Intellij IDEA Java classes not auto compiling on save
...e one small change in one single class. Even the "Compile 'StartController.java'" meaning one class only takes 3-4 seconds. Eclipse does this in less than 100 milliseconds. I will test the eclipse mode plugin again and decide what to go with..
– mmm
Jan 5 '14 a...
What Java ORM do you prefer, and why? [closed]
...rence might be in the dynamic nature of python (and perl). Using an ORM in Java is a pain. But in dynamic languages it can be really expressive. There are some great projects to embed ORM operations like DSLs in Python and are great.
– santiagobasulto
Apr 26 '1...
Why does JPA have a @Transient annotation?
Java has the transient keyword. Why does JPA have @Transient instead of simply using the already existing java keyword?
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C++ equivalent of java's instanceof
What is the preferred method to achieve the C++ equivalent of java's instanceof ?
6 Answers
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How to visualize an XML schema? [closed]
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The open source command line java application xsdvi creates an interactive diagram in SVG format from an XML Schema Definition. The generated SVG file can be displayed by a modern web browser where the user can expand and collapse the tree by mouse click...
In Python, how do I indicate I'm overriding a method?
In Java, for example, the @Override annotation not only provides compile-time checking of an override but makes for excellent self-documenting code.
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How to create a file in Android?
...ing to the docs, calling close will perform a flush first. docs.oracle.com/javase/6/docs/api/java/io/…
– Eliot
Aug 19 '13 at 22:36
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What does it mean: The serializable class does not declare a static final serialVersionUID field? [d
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From the javadoc:
The serialization runtime associates with each serializable class a version number, called a serialVersionUID, which is used during deserialization to verify that the sender and receiver of a serialized object ha...
Convert String to double in Java
How can I convert a String such as "12.34" to a double in Java?
15 Answers
15
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StringUtils.isBlank() vs String.isEmpty()
...("bob") = false
StringUtils.isEmpty(" bob ") = false
Warning: In java.lang.String.isBlank() and java.lang.String.isEmpty() work the same except they don't return true for null.
java.lang.String.isBlank() (since Java 11)
java.lang.String.isEmpty()
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