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Friday, 7 November 2014

Overloading in Java

Question:Why compiler provides a default constructor if a class doesn’t contain any constructor and why it doesn’t provide the default constructor when a class contains any parameterized constructor?
Solution
Overloading:-

  • If a class contains multiple implementations of a method or constructor then method or constructor is said to be overloaded.
  • Implementations of overloaded method or constructor are differentiated either by varying the number of arguments or by varying their type of arguments.
  • Overloading is one of the means of implementing polymorphism.

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