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The most important new features in the JDT are: Rich hovers: Follow links in Javadoc hover Quick fix problems in problem hover Inspect variable values in the debug hover Java Editor Breadcrumb: Know where you are while in the editor Various Content Assist improvements SWT Templates: Build your UI the fast way Format edited lines on save: Keep outgoing changes to a minimum Extract Class refactoring: Replace a set of fields by a new class Compiler supports multi CPU-machines: Compile your workspace faster

Closure A "closure" is an expression (typically a function) that can have free variables together with an environment that binds those variables (that "closes" the expression).

Example 2: Associating Functions with Object Instance Methods

When you use event capturing | | ---------------| |----------------- | element1 | | | | -----------| |----------- | | |element2 \ / | | | ------------------------- | | Event CAPTURING | ----------------------------------- the event handler of element1 fires first, the event handler of element2 fires last. Event bubbling When you use event bubbling / \ ---------------| |----------------- | element1 | | | | -----------| |----------- | | |element2 | | | | | ------------------------- | | Event BUBBLING | ----------------------------------- the event handler of element2 fires first, the event handler of element1 fires last.

addEventListener() method explained on the Advanced models page. If its last argument is true the event handler is set for the capturing phase, if it is false the event handler is set for the bubbling phase.

In the Microsoft model you must set the event’s cancelBubble property to true. window.event.cancelBubble = true In the W3C model you must call the event’s stopPropagation() method. e.stopPropagation()