StackOverflow2013

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15503967
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2013-03-19T15:42:18.127
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2013-03-19T16:01:59.523
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2013-03-19T16:01:59.523
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15503673
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First, we aint here to do your homework ;-) second, write first up what you want. for example: <ul> <li>create file</li> <li>write random numbers to file (0-1000) (is it allowed to have a number twice?)</li> <li>close/save the file</li> <li>open the file</li> <li>read the file</li> <li>find highest number</li> <li>find lowest number</li> <li>calc average</li> <li>count highest consecutive values</li> </ul> Translate that to logic you understand before trying it in java. step 4: how would you count amount of consecutive numbers on paper? f.e. - every time a new number is one higher then the number before, increase the temp variable. - every time it is not ( new value > old value ) compare the temp variable with highest consecutive variable and save the highest one. reset the temp variable aftewards This would result in: <pre><code>int largestConsecutive = 0; int largestConsecutiveTemp=0; int previewValue =9999; // loop through the lines of the file, each Next elements represents one number. // Use this loop to calc the result values, not to print out on every new number while (infile.hasNext()){ ... if(num > previewValue){ //do something } else { //do something } ... } </code></pre> The while loop is kinda wrong too on finding the smallest/largest numbers: <pre><code>while (infile.hasNext()){ num = infile.nextInt(); largest = infile.nextInt(); smallest = infile.nextInt(); System.out.println(num); if (num < largest){ largest = num; } if (num > smallest){ smallest = num; } System.out.println("The largest is: " + largest); prw.println("The largest is: " + largest); System.out.println("The smallest is: " + smallest); prw.println("The smallest is: " + smallest); System.out.println("The average is: " + average); prw.println("The average is: " + average); } </code></pre> You override every time your smallest/largest variables. <pre><code>largest = 0; // 0, because when you compare with numbers between 0-1000, the new value is larger smallest = 9999; // 0, would be wrong here as it would be abvious the smallest number total = 0; amount=0; // loop through the lines of the file, each Next elements represents one number. // Use this loop to calc the result values, not to print out on every new number while (infile.hasNext()){ num = infile.nextInt(); // override the largest variable with the new largest number if (num > largest){ largest = num; } // override the smallest variable with the new smallest number if (num < smallest){ smallest = num; } // needed to calc the average total += num; amount++; } average = (total / amount); System.out.println("The largest is: " + largest); prw.println("The largest is: " + largest); System.out.println("The smallest is: " + smallest); prw.println("The smallest is: " + smallest); System.out.println("The average is: " + average); prw.println("The average is: " + average); </code></pre>
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1. POWriting and reading files, using loops, and analyzing data
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