Assuming the existence of two integers, doctor and donna, that hold some value; declare a variable named ood that holds the sum of doctor and donna.Following is buggy code. Click on "Check" and study the error. Then read the problem statement again carefully, and identify the issue based on the error message.This example also indicates how you don't need to worry about all the error messages, and how, many times, fixing the first few takes care of the rest.For example:Test Resultint doctor = 17, donna = 29;for doctor = 17 and donna = 29, ood = 46int doctor = 50, donna = -50;for doctor = 50 and donna = -50, ood = 0int doctor = Integer.MAX_VALUE, donna = 1; //THIS IS PRETTY COOL - BECAUSE IT CAUSES INTEGER OVERFLOWfor doctor = 2147483647 and donna = 1, ood = -2147483648
Question
Assuming the existence of two integers, doctor and donna, that hold some value; declare a variable named ood that holds the sum of doctor and donna.Following is buggy code. Click on "Check" and study the error. Then read the problem statement again carefully, and identify the issue based on the error message.This example also indicates how you don't need to worry about all the error messages, and how, many times, fixing the first few takes care of the rest.For example:Test Resultint doctor = 17, donna = 29;for doctor = 17 and donna = 29, ood = 46int doctor = 50, donna = -50;for doctor = 50 and donna = -50, ood = 0int doctor = Integer.MAX_VALUE, donna = 1; //THIS IS PRETTY COOL - BECAUSE IT CAUSES INTEGER OVERFLOWfor doctor = 2147483647 and donna = 1, ood = -2147483648
Solution
Based on the problem statement, you are asked to declare a variable named ood that holds the sum of two integers doctor and donna. Here is how you can do it in Java:
int doctor = 17;
int donna = 29;
int ood = doctor + donna;
In this case, ood will hold the value 46 which is the sum of 17 and 29.
Similarly, for the other cases:
int doctor = 50;
int donna = -50;
int ood = doctor + donna;
In this case, ood will hold the value 0 which is the sum of 50 and -50.
int doctor = Integer.MAX_VALUE;
int donna = 1;
int ood = doctor + donna;
In this case, ood will hold the value -2147483648 due to integer overflow. This happens because the maximum value an integer can hold in Java is 2147483647. When you add 1 to it, it overflows and wraps around to the minimum integer value which is -2147483648.
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