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‎Duke-Java-Programming-Solving-Problems-with-Software/week4/BabyNames/BabyNames.iml

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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="module-library" exported="">
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<library>
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<CLASSES>
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<root url="jar://$MODULE_DIR$/../../lib/courserajava.jar!/" />
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</CLASSES>
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<JAVADOC />
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<SOURCES>
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<root url="jar://$MODULE_DIR$/../../lib/courserajava.jar!/" />
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</SOURCES>
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</library>
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</orderEntry>
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<orderEntry type="module-library" exported="">
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<library>
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<CLASSES>
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<root url="jar://$MODULE_DIR$/../../lib/apache-csv.jar!/" />
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</CLASSES>
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<JAVADOC />
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<SOURCES>
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<root url="jar://$MODULE_DIR$/../../lib/apache-csv.jar!/" />
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</SOURCES>
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</library>
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</orderEntry>
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</component>
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</module>

‎Duke-Java-Programming-Solving-Problems-with-Software/week4/BabyNames/src/babyNames.java

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/**
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* Final Project - Analyzing baby names data from 1880 to 2014
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* @author: salimt
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*/
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import edu.duke.DirectoryResource;
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import edu.duke.FileResource;
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import org.apache.commons.csv.CSVRecord;
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import java.io.File;
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public class babyNames {
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public static void main(String[] args) {
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// testTotalBirths();
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// testGetRank();
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// testGetName();
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// testWhatIsNameInYear();
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// testYearOfHighestRank();
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// testGetAverageRank();
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// testGetTotalBirthsRankedHigher();
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//----QUIZ Questions----\\
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// System.out.println(getRank(1960, "Emily", "F")); //251
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// System.out.println(getRank(1971, "Frank", "M")); //54
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// System.out.println(getName(1980, 350, "F")); //Mia
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// System.out.println(getName(1982, 450, "M")); //Forrest
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// whatIsNameInYear("Susan", 1972, 2014, "F"); //Addison
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// whatIsNameInYear("Owen", 1974, 2014, "M"); //Leonel
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// System.out.println(yearOfHighestRank("Genevieve", "F")); //1914
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// System.out.println(yearOfHighestRank("Mich", "M")); //1960
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// System.out.println(getAverageRank("Susan", "F")); //173.51
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// System.out.println(getAverageRank("Robert", "M")); //10.75
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// System.out.println(getTotalBirthsRankedHigher(1990, "Emily", "F")); //323200
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// System.out.println(getTotalBirthsRankedHigher(1990, "Drew", "M" )); //1498074
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}
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//returns total birth statistics of the given year/file
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public static void totalBirths(FileResource fr){
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int totalBirths = 0;
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int totalBoys = 0, totalGirls = 0;
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int boyNames = 0, girlNames = 0;
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for(CSVRecord record: fr.getCSVParser(false)){
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int numBorn = Integer.parseInt(record.get(2)); //gets the number of babies born with the name
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totalBirths += numBorn;
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if(record.get(1).equals("M")){
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totalBoys += numBorn;
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boyNames++;
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}else{
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totalGirls += numBorn;
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girlNames++;
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}
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}
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System.out.println("Total births: " + totalBirths + " Total names: " + boyNames+girlNames);
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System.out.println("Total boys: " + totalBoys + " Total boy names: " + boyNames);
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System.out.println("Total girls: " + totalGirls + " Total girl names: " + girlNames);
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}
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//TEST method for totalBirths
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public static void testTotalBirths(){
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FileResource fr = new FileResource();
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totalBirths(fr);
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}
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//method returns the rank of the name in the file for the given gender,
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//where rank 1 is the name with the largest number of births. If the name is not in the file, then -1 is returned
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public static int getRank(Integer year, String name, String gender){
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FileResource fr = new FileResource("yob" + year + ".csv");
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int rank = 0;
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for(CSVRecord rec: fr.getCSVParser(false)){
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if(rec.get(1).equals(gender)){ rank++; }
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if(rec.get(0).equals(name) && rec.get(1).equals(gender)){
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return rank;
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}
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}
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return -1;
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}
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//TEST method for getRank
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public static void testGetRank(){
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System.out.println(getRank(2012, "Mason", "M")); //2
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System.out.println(getRank(2012, "Mason", "F")); //-1
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System.out.println(getRank(2012, "Ava", "F")); //5
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}
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//method returns the name of the person in the file at this rank, for the given gender,
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//where rank 1 is the name with the largest number of births. If the rank does not exist in the file,
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//then “NO NAME” is returned.
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public static String getName(Integer year, Integer rank, String gender){
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FileResource fr = new FileResource("yob" + year + ".csv");
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int nameRank = 0;
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for(CSVRecord rec: fr.getCSVParser(false)){
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if(rec.get(1).equals(gender)){ nameRank++; }
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if(nameRank == rank && rec.get(1).equals(gender)){
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return rec.get(0);
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}
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}
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return "NO NAME";
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}
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//TEST method for getName
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public static void testGetName(){
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System.out.println(getName(2012, 2, "M")); //Mason
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System.out.println(getName(2012, 5, "M")); //NO NAME
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System.out.println(getName(2012, 5, "F")); //Ava
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}
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//method determines what name would have been named if they were born in a
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//different year, based on the same popularity. That is, you should determine the rank of name
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//in the year they were born, and then print the name born in newYear that is at the same rank and same gender.
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public static void whatIsNameInYear(String name, Integer year, Integer newYear, String gender){
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int oldRank = getRank(year, name, gender);
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String newName = getName(newYear, oldRank, gender);
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System.out.println(name + "born in " + year + " would be " + newName + " if he/she was born in " + newYear);
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}
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//TEST method for whatIsNameInYear
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public static void testWhatIsNameInYear(){
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whatIsNameInYear("Isabella", 2012, 2014, "F"); //Sophia
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whatIsNameInYear("Noah", 2013, 2012, "M"); //Jacob
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}
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//method selects a range of files to process and returns an integer, the year with the
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//highest rank for the name and gender.
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//If the name and gender are not in any of the selected files, it should return -1
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public static int yearOfHighestRank(String name, String gender){
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DirectoryResource dr = new DirectoryResource();
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int highestRank = 0;
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int highestYear = -1;
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for(File f: dr.selectedFiles()){
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int currYear = Integer.parseInt(f.getName().replaceAll("[^\\d]", ""));
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int currRank = getRank(currYear, name, gender);
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if(highestRank == 0 && currRank != -1){
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highestRank = currRank;
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highestYear = currYear;
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}
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if(currRank < highestRank && currRank != -1){
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highestRank = currRank;
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highestYear = currYear;
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}
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}
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return highestYear;
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}
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//TEST method for yearOfHighestRank
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public static void testYearOfHighestRank(){
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System.out.println(yearOfHighestRank("Isabella", "F")); //2012
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System.out.println(yearOfHighestRank("Lee", "M")); //-1
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System.out.println(yearOfHighestRank("Emma", "F")); //2014
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System.out.println(yearOfHighestRank("Emma", "M")); //-1
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}
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//method selects a range of files to process and returns a double representing the average rank
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//of the name and gender over the selected files. It should return -1.0 if the name is not ranked
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//in any of the selected files
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public static double getAverageRank(String name, String gender){
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DirectoryResource dr = new DirectoryResource();
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int totalRank = 0, countedYears = 0;
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for(File f: dr.selectedFiles()){
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int currYear = Integer.parseInt(f.getName().replaceAll("[^\\d]", ""));
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int currRank = getRank(currYear, name, gender);
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if(currRank != -1){
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totalRank += currRank;
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countedYears++;
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}
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}
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double result = (double)totalRank/countedYears;
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if(result > 0){ return result; }
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return -1;
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}
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//TEST method for getAverageRank
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public static void testGetAverageRank(){
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System.out.println(getAverageRank("Sophia", "F")); //1.66
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System.out.println(getAverageRank("Mason", "M")); //3.0
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System.out.println(getAverageRank("Jacob", "M")); //2.66
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System.out.println(getAverageRank("Lee", "M")); //-1
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System.out.println(getAverageRank("Jacob", "F")); //-1
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}
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//method returns an integer, the total number of births of those names with the same gender
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//and same year who are ranked higher than name
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public static int getTotalBirthsRankedHigher(Integer year, String name, String gender){
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FileResource fr = new FileResource("yob" + year + ".csv");
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int births = 0;
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int personsRank = getRank(year, name, gender); //given persons rank in the given year
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for(CSVRecord rec: fr.getCSVParser(false)){
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if(rec.get(1).equals(gender)){
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if(personsRank > getRank(year, rec.get(0), gender)){
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births += Integer.parseInt(rec.get(2));
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}
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}
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}
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return births;
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}
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//TEST method for getTotalBirthsRankedHigher
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public static void testGetTotalBirthsRankedHigher(){
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System.out.println(getTotalBirthsRankedHigher(2012, "Ethan", "M")); //15
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System.out.println(getTotalBirthsRankedHigher(2012, "Emma", "F")); //10
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System.out.println(getTotalBirthsRankedHigher(2012, "Isabella", "F")); //19
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System.out.println(getTotalBirthsRankedHigher(2012, "Sophia", "F")); //0
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System.out.println(getTotalBirthsRankedHigher(2012, "Lee", "M")); //0
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}
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}

‎Duke-Java-Programming-Solving-Problems-with-Software/week4/BabyNames/src/example-small.csv

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Emma,F,500
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Olivia,F,400
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Sophia,F,300
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Isabella,F,200
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Ava,F,100
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Noah,M,100
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Liam,M,40
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Mason,M,30
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Jacob,M,20
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William,M,10

‎Duke-Java-Programming-Solving-Problems-with-Software/week4/BabyNames/src/us_babynames.zip

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‎Duke-Java-Programming-Solving-Problems-with-Software/week4/MiniProject-BabyNames-(1880-2014).pdf

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