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Why Call super() in a Constructor?
When extending a class in Java, the first line of the constructor typically includes a call to super(). This explicit invocation serves a crucial purpose, especially when the parent class has a constructor with parameters.
Implicit Call to super()
By default, Java inserts an implicit call to super() without any arguments for all user-defined classes with a parent class. As a result, calling super() explicitly is generally unnecessary if the parent constructor doesn't require parameters.
Purpose of Explicit super() Call
However, an explicit call to super() with arguments becomes essential if the parent constructor takes parameters and the child class constructor requires those arguments. Without this call, the compiler will generate an error.
**Example with Control over Frame
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