Is my interpretation of lambda expression in the context of c++ and Java is correct?
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Is my interpretation of lambda expression in the context of c++ and Java is correct?
They are not quite as same. Both create unnamed classes, but their similarity ends at that point.
In C++ you create a closure catching your local variables, optionally by reference. In Java, you just get a snapshot of the current local variable’s values (and those variables need to be “final”).
The purpose of anonymous inner classes is to extend another class or implement another interface ad-hoc. For that reason, anonymous inner classes can simulate the job of lambda expressions to some extend, for example by implementing the
Runnableinterface. Lambda expressions are specifically designed to be called and possibly modify the local variables in their environment.