Program Assignment 3 : #1. Array LIsts and Data Analysis with Reading, Mapping, (Reorganizing/Shuffling) and Reducing (10pts) Please answer the following questions. You are supposed to write (1) TemperatureLog class for defining an object which holds the extracted data from the sequence of rows of the given "data.txt" file and (2)TestTemperatureMain class to solve the following subsequent questions which need to be written by the associated methods. // Class TemperatureLog public class TemperatureLog { private String aRow; private int ID; private int year private double tempDbl; // temperature value typed private int tempInt; // either double or int private String sensorCode; public TemperatureLog() { // constructor 1 aRow = ""; ID = 0; year = 0; tempDbl = 0.0; tempInt = 0; sensorCode = ""; } public TemperatureLog(String line) { // constructor 2 aRow = line; ID = 0; year = 0; tempDbl = 0.0; tempInt = 0; sensorCode = ""; } // Getter methods ... // Setter methods ... } // end of class TemperatureLog 1) Reading : Given "data.txt", please write a program, TestTemperatureMain.java, which reads 40 lines of data and build ArrayList of TemperatureLog from the individual lines. The class TemperatureLog is to be defined and used to print out the lines of string on the console (System.out) (2pts): complete the following TestTemperatureMain.java. Remark: for the better performance, you may declare intermediate classes in addition to the given two classes. // Class TestTemperatureMain public class TestTemperatureMain { public static void main(String[] args) throws FileNOtFoundException { ArrayList tempList = new ArrayList(); Scanner input = new Scanner(new File("data.txt")); // 1. Read data.txt file and build ArrayList of TemperatureLog for each line read2BuildArrayList(input, tempList); // 2. Decompose each row into separate fields decomposeArrayList(tempList); // 3. Map each row by extracting year and temperature // into ArrayList (or Array) of (year, temperature) // pair. Or you just need to keep the existing // ArrayList and print out (year, temperature) // on the console. // Note: you can choose one of the following pair map(tempList, mappedList); map(tempList); // 4. Reorganize each mapped pair by merging them into // the reorganized pair:(year, [array of temperature values of the year]), // which merges the temperature values of the same year into // the array of the temperature values. // You might need to define new class used as reorganizedList. reorganize(tempList, reorganizedList); // 5. Reduce the above reorganizedList into the short(reduced) List. // // This is supposed to print out the list of (year, highest_temperature_value_of_the_year) reduce(reorganizedList); } // end of main() public static void read2BuildArrayList( ... ) { } // end of read2BuildArrayList() public static void decomposeArrayList( ... ) { } // end of decomposeArrayList() public static void map( ... ) { } // end of map() public static void reorganize( ... ) { } // end of reorganize() public static void reduce( ... ) { } // end of reduce() } // end of class TestTemperatureMain Please refer to the following descriptions on each step. 2) Decomposing : After then, you are supposed to decompose each line into the ArrayList of the following structure. (2pts) - Encoding rule for each line: 1st int : ID 2nd String : 0000 : meaningless 4-digit ____ : Year (4-digit) A001 : Sensor code (until the end of the String) 3rd String : '+' or '-' : positive or negative digits (prior to the next '+' symbol) : temperature (Fahrenheit degree) following +999999 : meaningless - Analyzed data within ArrayList of the TemperatureLog objects id 1 2 3 4 ... year 1950 1950 1950 1950 ... sensor code A01 A012 A02 A039 ... temperature(F) 11 22 65 103 ... You will generate another ArrayList which contains objects typed class TemperatureLog as follows: public class TemperatureLog { private private private private String aRow; int ID; int year double tempDbl; // temperature value typed private int tempInt; // either double or int private String sensorCode; ... } In the above driver class, TestTemperatureMain, you are supposed to create the following ArrayList of TemperatureLog class . ... ArrayList tempList = new Arraylist(); ... "data.txt" 1 00001950A01 +0011+999999 2 00001950A012 3 00001950A02 4 00001950A039 +0103+999999 5 00001950B001 +0099+999999 6 00001950B026 +0054+999999 7 00001950C006 +0109+999999 8 00001950D01 +0085+999999 9 00001950D30 +0072+999999 +0022+999999 +0065+999999 10 00001950E03 +0120+999999 11 00001951A01 +0026+999999 12 00001951A012 +0035+999999 13 00001951A02 14 00001951A039 15 000019510B001 16 00001951B026 +0049+999999 17 00001951C006 +0099+999999 18 00001951D01 +0091+999999 19 00001951D30 +0085+999999 20 00001951E03 +0117+999999 21 00001953A01 +0026+999999 22 00001953A012 23 00001953A02 24 00001953A039 25 000019530B001 26 00001953B026 +0072+999999 27 00001953C006 +0087+999999 28 00001953D01 +0102+999999 29 00001953D30 +0095+999999 30 00001953E03 +0102+999999 31 00001954A01 +0033+999999 32 00001954A012 33 00001954A02 +0059+999999 +0110+999999 +0103+999999 +0041+999999 +0069+999999 +0110+999999 +0100+999999 +0046+999999 +0057+999999 34 00001954A039 +0106+999999 35 000019540B001 36 00001954B026 +0093+999999 37 00001954C006 +0057+999999 38 00001954D01 +0089+999999 39 00001954D30 +0088+999999 40 00001954E03 +0092+999999 +0119+999999 3) Mapping : You are supposed to map the data as follows: (2pts) (1950, 11) (1950, 22) (1950, 65) (1950, 103) (1950, 99) (1950, 54) (1950, 109) (1950, 85) (1950, 72) (1950, 120) (1951, 26) (1951, 35) (1951, 59) (1951, 110) (1951, 103) (1951, 49) (1951, 99) (1951, 91) (1951, 85) (1951, 117) (1953, 26) (1953, 41) (1953, 69) (1953, 110) (1953, 100) (1953, 72) (1953, 87) (1953, 102) (1953, 95) (1953, 102) (1954, 33) (1954, 46) (1954, 57) (1954, 106) (1954, 119) (1954, 93) (1954, 57) (1954, 89) (1954, 88) (1954, 92) The above list is to be from the intermediate (internal) ArrayList of YearTemp class. 4) Reorganizing (Shuffling) & Reducing : The above list is to be reorganized and reduced as follows: (4pts) Reorganizing: (1950, [11, 22, 65, 103, 99, 54, 109, 85, 72, 120]) (1951, [26, 35, 59, 110, 103, 49, 99, 91, 85, 117]) (1953, [26, 41, 69, 110, 100, 72, 87, 102, 95, 102]) (1954, [33, 46, 57, 106, 119, 93, 57, 89, 88, 92]) You need to create a method which reads the list from question 3) and reorganizes them into the above form. A new class AllInOne might defined to handle this function. Finally the above 4 lines of intermediate data should be reduced by picking up the highest temperature among the contained data. Reducing: (1950, 120) (1951, 117) (1953, 110) (1954, 119) Remark : You are supposed to complete methods which handle the main functionalities: 1) build; 2) decompose; 3) map; 4) reorganize (shuffle); and 5)reduce. The submission should contain the source code of all the classes and the summary document. Depending on the quality and your creativity, I may consider giving extra credit for this assignment. Thanks.
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