Java Problems

Java is a great language. However, like any other language, it's not always intuitively obvious how to use its features to get out of a corner you've painted yourself into. This page lists some complaints people have about various Java libraries, and hopefully, will lead to solutions that we can claim to be JavaIdioms.

• DrawingModelOfSwing
• JavaDynamicLoading
• JavaDynamicDispatchAndConstructors
• JavaByteIoInconsistency
• JavaSingletonProblems, AnotherJavaSingletonProblem
• JavaVersioning
• UsageOfInnerClasses
• ConvertingSerializedObjects
• SwingScrollingInconsistency

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Not sure where to put this yet, but I find it an annoying syntactical violation of OnceAndOnlyOnce when the class type name is also the constructor:

 Employee julie = new Employee(26);

This is common enough that some kind of shortcut should have been devised (or perhaps a long-cut if it's different).

Agreed. TutorialDee, for example, allows the following...

 VAR julie INIT(Employee(26));

...as a short form of:

 VAR julie Employee INIT(Employee(26));

A version of the RelProject also supported:

 VAR julie := Employee(26);

Java, and similar languages, could do with the equivalent.

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CategoryJava, IsDot, JavaDesignFlaws, JavaPatterns