CODEWITHSUNDEEP
javaarrays
Xylus
Xylus

Reputation: 33

How to get a percentage from an array value

I am trying to get a percentage from an array value in a for-loop.

  System.out.println(playerName[i+1] + " got " + playerScore[i] + " questions right out of " + question.length + "!\n");
  double playerScorePercentage = (playerScore[i] / question.length) * 100;
  System.out.println("Which is " + playerScorePercentage + "%!");

What am I doing wrong? The playerScoredisplays a value but when I am trying to do a calculation with it below, it displays 0.0 no matter what.

An example run:

John got 3 questions right out of 10!
Which is 0.0%!

Upvotes: 0

Views: 516

Answers (1)

Paco Abato
Paco Abato

Reputation: 4065

Try casting the values before the division:

double playerScorePercentage = ((double)playerScore[i] / (double)question.length) * 100;

And search the web for "integer division" if you don't know the topic.

Upvotes: 2

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