luisza/javatest

Java test of Solvo

Solvo's Java test

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Statement

You need to build a SOAP webservice in Java that receive a list of numbers and mathematical operations and return the result of solving them in order of precedence.

Features:

• This list is built by an external web application (do not implement it), it allows the user to insert the numbers without any validation.
• The application will only solve basic operations (addition, subtraction, multiplication and division) to whole numbers and decimals.
• To represent numbers in thousands can use "commas" or "spaces" or both, for example 10,000 or 5,000,321 or 10, 321 or 3 000 that can be combined with points to set a valid number 10,592.76.
• You should be careful with the position of the comma, realize that 100,02 or 10,0000 or ,302 are not valid.
• Return or raise an error if exist an invalid input.

These are valid inputs ([ ] denotes list):

[10,592.76, '+', '780', '+', 10000, '*', 200.76]
[1, '/', 323, '-', 765]
[1, '+', 2]