4 java codes ( method and scanner )


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[2] Write a program to prompt a user for the number of integers and the integers (at least 5, ranging from 0 to 100) and print the minimum, maximum, total sum, and average of the numbers. The program interface is as follows: How many integers? 6 Next integer? 100 Next integer? 97 Next integer? 68 Next integer? 85 Next integer? 88 Next integer? 76 Min Max Sum Avg = = = = 68 100 514 85.67 O Tokenizing [3] Write a static method named numberStatistics that accepts a string of text as a parameter. Assume that the text is read from a file, "score.txt." The text is a series of strings (name) and integers (score). The method should process this text (maybe multiple lines) and report various statistics about the integers. Report the total number of the numbers, the sum of the numbers, the average of the numbers and the minimum and maximum numbers. For example, if the text is the following: Helene 5 Jordan 7 Eve 2 Ken 8 Andrew 9 David 10 Amy 12 Sean 98 Patrick 7 Joy 14 Sue 20 Jimmy 22 Your method should produce the following output. Total numbers = 12 Sum of numbers Average score minimum number maximim number = = = = 214 17.833 2 98 [4] Write a static method named negativeSum() that accepts a string of text as a parameter from the standard console input stream. Assume that the text is a series of integers, and determine whether or not the cumulative sum starting from the first number is ever negative. The method should produce a message indicating whether or not a negative sum is possible and it should return true if a negative sum can be reached and false if it can't be reached. For example, if the string contains the following text, "38 4 19 -27 -15 -3 4 19 38" your method will consider the sum of just one number (38), the sum of the first two numbers (38 + 4), the sum of the first three numbers (38 + 4 + 19), and so on up to the sum of all of the numbers. None of these sums is negative, so the method would produce the following message: no negative sum and would return false. If the text is the following, "14 7 -10 9 -18 -10 17 42 98" the method finds that a negative sum is reached after adding 6 numbers together (14 + 7 + -10 + 9 + -18 + -10) and that the sum is -8. It should report the following: -8 after 6 steps and should return true, indicating that a negative sum can be reached. O Line and Token Processing from File [5] Write a static method name wordCountAndFixSpace that takes a Scanner representing a file as a parameter and that reports various statistics about the file. The method should generate the number of lines, the total number of words (regard "can't" as 1-word and disregard any marks or signs such as ?, ", ., -, \n, \t, etc. when counting), the total number of characters, and the longest word. The text may contain multiple spaces and tabs. Those spaces should be reduced to single spaces between each word in order to print them to the console. Your program can assume that the text file may contain at least one line of input. The input file contains the following text: "Writing is You get an better and exercise." faster with practice. If you were going to run a marathon a year from now, would you wait for months and then run 26 miles cold? No, you would build up slowly, running most days. You might start on the flats and work up to more demanding and difficult terrain. To become a writer, write. Don't wait to work for that book manuscript or that monster on your writing. external-review report ...
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Bitaseme M
School: UCLA

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