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Java Java Basics Perfecting the Prototype Parsing Integers

Posted by Roland Shen
Roland Shen
7,628 Points

Why don't you have to parse in C++ to get input?

How come in C++ you can enter in integers with the cin command without parsing it from a string into an integer first? Can you not just let the user enter an integer without converting from string to integer?

1 Answer

Logan R
Logan R
22,989 Points
Logan R
Logan R
22,989 Points

In Java, the Scanner returns the input as a String. That's just how it works.

With C++, you pass it what you want to take in, so for example:

int i;
cout << "Please enter an integer value: ";
cin >> i;

C++ knows the following will be an integer, so the input is expected and returned as an integer. The Java Scanner has no idea what the variable that it's taking in will be.