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I’m in an Intro to programming class, and I’m really having trouble with variable scope and loops. Here’s my loop:
import java.util.Scanner;
public static void scoreAverages(int players, int games)
{
Scanner keyboard = new Scanner(System.in);
int playerAverage;
int teamScoreAccumulator = 0;
int teamScoreAverage;
for(int x = 1; players >= x; x++)
{
int scoreAccumulator = 0;
for(int y = 1; games >= y; y++)
{
System.out.println(“Enter score ” + y +” for player ” + x + “: “);
scoreAccumulator = scoreAccumulator + keyboard.nextInt();
}
teamScoreAccumulator = teamScoreAccumulator + scoreAccumulator;
playerAverage = scoreAccumulator / games;
System.out.println(“Player ” + x + ” average: ” + playerAverage);
}
teamScoreAverage = teamScoreAccumulator / (games * players);
System.out.println(“Team average: ” + teamScoreAverage);
}
}
I need to get it to somehow store the individual averages outside of the loop, because I have to determine who has the highest average. Any tips?
Sorry, Java just isn’t my cup of tea.
int playerAverage;
I have a feeling that this line is going to cause problems.
I thought you were talking about an Island in Indonesia
Why? Because it’s an int?
Imagine if every baseball player had a batting average of 0.
You want your loop to store each player’s average in an array. Then you want to call max to find the highest average.
Here are a couple comments on your program.
1- Where are your comments? Right now you aren’t dealing with production code so you don’t see how important documentation is yet, but it’s a good habit to get into and it makes it easier for people to understand your code when you need help.
2- Why do you create a new scanner on every method call?
3- Why are you dividing by the number of players times the number of games?
BTW, which school teaches Java as an intro language?
I was joking about the island i wanted to see how many people heard of it before. Anyway your answer should be something like this:
//in the begining add
int max=0;
int highestPlayer;
//then right after you know playerAverage do this
if(playerAverage>max)
{
max = playerAverage;
highestPlayer=x;
}
//right before writting out team average add this
System.out.println(“Player with the highest average: ” + highestPlayer);
You’ll get to memory management eventually. Then you’ll understand (or be expected to understand :)) what should be at which scope. Your father is right about perl first, though if you didn’t have anyone teaching you I would recommend python instead. Easier.
I guess you still didnt see my answer which doesnt use arrays.
And by the way Perl is great but no one wants to use it anymore so i would suggest PHP over Perl.
I found JavaScript to be a great introduction to the concept of programming. It doesn’t have to compile for you to see results. It doesn’t drive you nuts about what type your variable is or was, which leaves out a large obsticle for a beginner.
The best way to learn anything is to be able to see results. When you learn to play a musical instrument it is also a good idea to learn some songs well early on. This way, instead of only practicing for a year, you get to hear yourself play the instrument.
For lowest avg I guess you can change if statement to
playerAverage<max
And change in the beginning
int max=100; // which is the Max number it can be
OneofMany, regarding programming programs (as you do not seem content with your current schooling), many have informed me of the quality of Touro. I know many coffeeroomers have scoffed at the value of a Touro degree, but their computer major is respected in the secular world. In addition, Touro faculty works hard to find their students successful jobs. I personally, know of many of their alumni that currently have prestigious jobs in upper class firms.
@OneOfMany I’m interested in perhaps going back to school and finish up a computer science degree I once started. You say your father is an engineer, so maybe you can tell me are there many jobs available or has outsourcing taken away most of them? I live in Brooklyn.
cpno, there are still many, many computer jobs available. In fact, even more now than there were years ago, thanks to great advances in technology. Although, part-times jobs are still limitted.
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