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charles kaifiti
IJVM
1 Answer(s)      3 years and 4 months ago
Posted in : Java Magazine


using IJVM..can anybody help me in this question

User should be prompted to enter two non-negative numbers (say, a and b where a >0 and b > 0) line by line and then press the enter key. Your program should calculate and display the following for these numbers (see sample output below): Sum (a + b) Difference (a - b or b - a, whichever gives a positive value) Product (a x b) Power (ab)

OUTPUT Num1: 2 Num2: 10 Sum = 12 Difference = 8 Product = 20 Power = 1024 Num1: a Invalid Number Num1: x End of program

Implement the above in a loop so that the user is prompted to keep entering two numbers and the program produces the required results for each set of numbers until user enters â??xâ?? (character x) which should halt (end) the program.

?· Validate your inputs to only accept non-negative numbers as input (i.e. n â?¥ 0). Hence, if user enters characters like negative numbers, alphabets or any other character; your program should display some appropriate error message and prompt for another valid number.

?· Use appropriate subroutines (functions/methods) in your program. For example, each mathematical operation/function could be in a subroutine.

?· Write appropriate comments and use good programming techniques in your code where possible.


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May 30, 2011 at 2:52 PM




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