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I know this is an old topic, but it’s an interesting one that hasn’t had the correct explanation for the original code yet, so here goes.
The block with a=6 is what’s called an instance initialiser . It’s simply enclosed in {} in the class but outside any method definitions.
when you create a...
Java doesn’t have an eval direct equivalent, but it does have 2-way inter working with JavaScript and other scripting systems.
It’s easy to pass a String containing arbitrary JavaScript code and get back the result of executing it. It sounds like it may be inefficient but my experience is that...