efficient way to calculate Range without using if else

Question

cash range ------------> tax

5,000 - 30,000--------> 700

30,001- 60,000-------- > 1,000

60,001 - 125,000 -------> 1,600

125,001 - 250,000 ---------> 3,000

250,001 - 500,000 -------- > 5,000

500,001 - 1,000,000---------> 9,000

How I can implement this in a efficient way? What if I don't want to use IF/Else for that.

Possible duplicate of [In Java,Using switch statement with a range of value in each case?](https://stackoverflow.com/questions/10873590/in-java-using-switch-statement-with-a-range-of-value-in-each-case) — gnat, Aug 16 '19 at 10:10

score 6 · Accepted Answer · answered Jul 25 '12 at 09:53

6

This is an excellent case for a NavigableMap implementation. You can use its ceilKey method to directly get what you need. Your keys will be the upper bounds of the ranges and the values will be the tax amounts.

answered Jul 25 '12 at 09:53

Marko Topolnik

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Are you able to provide a similar fashioned example for C#, I'm curious what would be a proper implementation for the same case. Thanks in advance. – Jul 25 '12 at 10:04
Great, Hoping for other suggestions otherwise will accept this nice alternative. – Waqas Jul 25 '12 at 10:05
@Peter Sorry, I'm not a C# user. – Marko Topolnik Jul 25 '12 at 10:06
Thank you anyway. I'll try to research. – Jul 25 '12 at 10:07

efficient way to calculate Range without using if else

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