Variable Argument Passing

Variable argument passing in Java is facilitated through the varargs feature, allowing methods to accept multiple arguments of the same type. This is achieved by using an ellipsis (...) followed by the variable name, which is treated as an array. A method can have only one varargs parameter, and it must be the last argument in the method signature. The varargs method can be invoked with zero or more arguments, exemplified by the method `childrenNames`, which can be called with different numbers of names.