Could you help me solve this problem? I am totally lost and honestly do not know what the question is asking. StatePopulations.java import java.util.Scanner; import java.io.FileInputStream; import java.io.IOException; import java.util.ArrayList; public class StatePopulations { public static ArrayList> fillArray1(ArrayList> statePairs, Scanner inFS) { StatePair pair; int intValue; String stringValue; while (inFS.hasNextLine()) { intValue = inFS.nextInt(); stringValue = inFS.next(); pair = new StatePair (intValue, stringValue); statePairs.add(pair); } return statePairs; } public static ArrayList> fillArray2(ArrayList> statePairs, Scanner inFS) { StatePair pair; String stringValue1; String stringValue2; while (inFS.hasNextLine()) { stringValue1 = inFS.next(); inFS.nextLine(); stringValue2 = inFS.nextLine(); pair = new StatePair (stringValue1, stringValue2); statePairs.add(pair); } return statePairs; } public static ArrayList> fillArray3(ArrayList> statePairs, Scanner inFS) { StatePair pair; String stringValue; int intValue; while (inFS.hasNextLine()) { stringValue = inFS.nextLine(); intValue = inFS.nextInt(); inFS.nextLine(); pair = new StatePair (stringValue, intValue); statePairs.add(pair); } return statePairs; } public static void main(String[] args) throws IOException { Scanner scnr = new Scanner(System.in); FileInputStream fileByteStream = null; // File input stream Scanner inFS = null; // Scanner object int myZipCode; int i; // ZIP code - state abbrev. pairs ArrayList> zipCodeState = new ArrayList>(); // state abbrev. - state name pairs ArrayList> abbrevState = new ArrayList>(); // state name - population pairs ArrayList> statePopulation = new ArrayList>(); // Fill the three ArrayLists // Try to open zip_code_state.txt file fileByteStream = new FileInputStream("zip_code_state.txt"); inFS = new Scanner(fileByteStream); zipCodeState = fillArray1(zipCodeState, inFS); fileByteStream.close(); // close() may throw IOException if fails // Try to open abbreviation_state.txt file fileByteStream = new FileInputStream("abbreviation_state.txt"); inFS = new Scanner(fileByteStream); abbrevState = fillArray2(abbrevState, inFS); fileByteStream.close(); // Try to open state_population.txt file fileByteStream = new FileInputStream("state_population.txt"); inFS = new Scanner(fileByteStream); statePopulation = fillArray3(statePopulation, inFS); fileByteStream.close(); // Read in ZIP code from user myZipCode = scnr.nextInt(); for (i = 0; i < zipCodeState.size(); ++i) { // TODO: Using ZIP code, find state abbreviation } for (i = 0; i < abbrevState.size(); ++i) { // TODO: Using state abbreviation, find state name } for (i = 0; i < statePopulation.size(); ++i) { // TODO: Using state name, find population. Print pair info. } } } StatePair.Java public class StatePair , Type2 extends Comparable> { private Type1 value1; private Type2 value2; // TODO: Define a constructor, mutators, and accessors // for StatePair // TODO: Define printInfo() method }
Could you help me solve this problem? I am totally lost and honestly do not know what the question is asking.
StatePopulations.java
import java.util.Scanner;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
public class StatePopulations {
public static ArrayList<StatePair<Integer, String>> fillArray1(ArrayList<StatePair<Integer, String>> statePairs,
Scanner inFS) {
StatePair<Integer, String> pair;
int intValue;
String stringValue;
while (inFS.hasNextLine()) {
intValue = inFS.nextInt();
stringValue = inFS.next();
pair = new StatePair<Integer, String> (intValue, stringValue);
statePairs.add(pair);
}
return statePairs;
}
public static ArrayList<StatePair<String, String>> fillArray2(ArrayList<StatePair<String, String>> statePairs,
Scanner inFS) {
StatePair<String, String> pair;
String stringValue1;
String stringValue2;
while (inFS.hasNextLine()) {
stringValue1 = inFS.next();
inFS.nextLine();
stringValue2 = inFS.nextLine();
pair = new StatePair<String, String> (stringValue1, stringValue2);
statePairs.add(pair);
}
return statePairs;
}
public static ArrayList<StatePair<String, Integer>> fillArray3(ArrayList<StatePair<String, Integer>> statePairs,
Scanner inFS) {
StatePair<String, Integer> pair;
String stringValue;
int intValue;
while (inFS.hasNextLine()) {
stringValue = inFS.nextLine();
intValue = inFS.nextInt();
inFS.nextLine();
pair = new StatePair<String, Integer> (stringValue, intValue);
statePairs.add(pair);
}
return statePairs;
}
public static void main(String[] args) throws IOException {
Scanner scnr = new Scanner(System.in);
FileInputStream fileByteStream = null; // File input stream
Scanner inFS = null; // Scanner object
int myZipCode;
int i;
// ZIP code - state abbrev. pairs
ArrayList<StatePair<Integer, String>> zipCodeState = new ArrayList<StatePair<Integer, String>>();
// state abbrev. - state name pairs
ArrayList<StatePair<String, String>> abbrevState = new ArrayList<StatePair<String, String>>();
// state name - population pairs
ArrayList<StatePair<String, Integer>> statePopulation = new ArrayList<StatePair<String, Integer>>();
// Fill the three ArrayLists
// Try to open zip_code_state.txt file
fileByteStream = new FileInputStream("zip_code_state.txt");
inFS = new Scanner(fileByteStream);
zipCodeState = fillArray1(zipCodeState, inFS);
fileByteStream.close(); // close() may throw IOException if fails
// Try to open abbreviation_state.txt file
fileByteStream = new FileInputStream("abbreviation_state.txt");
inFS = new Scanner(fileByteStream);
abbrevState = fillArray2(abbrevState, inFS);
fileByteStream.close();
// Try to open state_population.txt file
fileByteStream = new FileInputStream("state_population.txt");
inFS = new Scanner(fileByteStream);
statePopulation = fillArray3(statePopulation, inFS);
fileByteStream.close();
// Read in ZIP code from user
myZipCode = scnr.nextInt();
for (i = 0; i < zipCodeState.size(); ++i) {
// TODO: Using ZIP code, find state abbreviation
}
for (i = 0; i < abbrevState.size(); ++i) {
// TODO: Using state abbreviation, find state name
}
for (i = 0; i < statePopulation.size(); ++i) {
// TODO: Using state name, find population. Print pair info.
}
}
}
StatePair.Java
public class StatePair <Type1 extends Comparable<Type1>, Type2 extends Comparable<Type2>> {
private Type1 value1;
private Type2 value2;
// TODO: Define a constructor, mutators, and accessors
// for StatePair
// TODO: Define printInfo() method
}
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