CSC113_Tutorial5

# CSC113_Tutorial5 - + toString(): String - op1: double -...

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King Saud University College of Computer and Information Systems, Department of Computer Science CSC 113: Java Programming-II, Spring2011 Tutorial #5 : Inheritance MathOp represent a mathematical operation. We have only two operations: Add (+) and Subtract (-). Below is a description for all the attributes and methods: opSymbol The symbol of the operation. For example "+" for Add, and "-" for Subtract. op1, op2 The two operands of the operation (LHS and RHS operands). result(): double It should return the result of applying the operation on the two operands. toString(): String It should return the string representation of the operation with the two operands. i.e. op1 + opSymbol + op2 . MathOp + MathOp(opName: String) + result(): double + toString(): String # opSymbol: String Add + Add(op1: double, op2: double) + result(): double

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Unformatted text preview: + toString(): String - op1: double - op2: double Subtract + Subtract(op1: double, op2: double) + result(): double + toString(): String - op1: double - op2: double King Saud University College of Computer and Information Systems, Department of Computer Science CSC 113: Java Programming-II, Spring2011 Tutorial #5 : Inheritance You have to do the following: 1. Implement the above classes 2. Write a main class, in it: a. Define an array of MathOp with the size 3. b. Add these three operations to it : 5 + 3 , 2 – 1 , 10.5 + 5 using Add and Subtract . c. Loop through the 3 operaƟons in the array and print the string representaƟon of the operation and the result of each operation using the methods toString() and result() . You should get an output similar to this: 5 + 3 = 8 2 – 1 = 1 10.5 + 5 = 15.5...
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## This note was uploaded on 08/18/2011 for the course COMPUTER S CSC 113 taught by Professor Dr.safwanqasem during the Spring '11 term at King Saud University.

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CSC113_Tutorial5 - + toString(): String - op1: double -...

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