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Method calls cannot be distinguished by ________.
a. method name b. return type c. parameter lists d. method signature
A class declared as final _________________________________
a) cannot be changed. b) cannot have subclasses. c) cannot have superclasses. d) has several abstract methods. e) cannot be used in a program.
Suppose we attend a party. To be sociable, we will shake hands with everyone else. Write a fragment of code using a for statement that will compute the total number of handshakes that occur. (Hint: Upon arrival, each person shakes hands with everyone that is already there. Use the loop to find the total number of handshakes as each person arrives.)
What will be an ideal response?
Create a class called Complex for performing arithmetic with complex numbers. Write a driver program to test your class. Complex numbers have the form realPart + imaginaryPart * i where i is ?-1
Use floating-point numbers to represent the data of the class. Provide a constructor that enables an object of this class to be initialized when it is created. The constructor should contain default values in case no initializers are provided. Provide methods for each of the following: a) Adding two ComplexNumbers: The real parts are added together to form the real part of the result, and the imaginary parts are added together to form the imaginary part of the result. b) Subtracting two ComplexNumbers: The real part of the right operand is subtracted from the real part of the left operand to form the real part of the result, and the imaginary part of the right operand is subtracted from the imaginary part of the left operand to form the imaginary part of the result. c) Printing ComplexNumbers in the form (a, b), where a is the real part and b is the imaginary part.