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Java Exception Handling

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Java Exception Handling

Java HackerRank

Difficulty Max Score Success Ratio
Easy 15 95.46%

You are required to compute the power of a number by implementing a calculator. Create a class MyCalculator which consists of a single method long power(int, int). This method takes two integers, [SVG image] and [SVG image] , as parameters and finds [SVG image] . If either [SVG image] or [SVG image] is negative, then the method must throw an exception which says " [SVG image] ". Also, if both [SVG image] and [SVG image] are zero, then the method must throw an exception which says " [SVG image] "

For example, -4 and -5 would result in [SVG image] .

Complete the function power in class MyCalculator and return the appropriate result after the power operation or an appropriate exception as detailed above.

Input Format

Each line of the input contains two integers, [SVG image] and [SVG image] . The locked stub code in the editor reads the input and sends the values to the method as parameters.

Constraints

  • [SVG image]
  • [SVG image] Output Format

Each line of the output contains the result [SVG image] , if both [SVG image] and [SVG image] are positive. If either [SVG image] or [SVG image] is negative, the output contains "n and p should be non-negative". If both [SVG image] and [SVG image] are zero, the output contains "n and p should not be zero.". This is printed by the locked stub code in the editor.

Sample Input 0

3 5
2 4
0 0
-1 -2
-1 3

Sample Output 0

243
16
java.lang.Exception: n and p should not be zero.
java.lang.Exception: n or p should not be negative.
java.lang.Exception: n or p should not be negative.

Explanation 0

  • In the first two cases, both [SVG image] and [SVG image] are postive. So, the power function returns the answer correctly.
  • In the third case, both [SVG image] and [SVG image] are zero. So, the exception, "n and p should not be zero.", is printed.
  • In the last two cases, at least one out of [SVG image] and [SVG image] is negative. So, the exception, "n or p should not be negative.", is printed for these two cases.

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