Java (well, JVM) has method hotswapping. It's very useful for debugging and development. Because of static typing, you can't change classes to add new methods, but you can modify existing methods. (There is something called JRebel which does allow you to change classes but I find it a little hacky.)
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Java (well, JVM) has method hotswapping. It's very useful for debugging and development. Because of static typing, you can't change classes to add new methods, but you can modify existing methods. (There is something called JRebel which does allow you to change classes but I find it a little hacky.)