Reference no: EM13939996
The file named babynames80s.txt contains the data for names in the 80s, pasted directly from the Social Security Administration web site. The numbers in the files have comma separators:
1 Michael 663,087 3.4512 Jessica 469,271 2.5448
2 Christopher 555,660 2.8920 Jennifer 440,697 2.3899
3 Matthew 458,596 2.3869 Amanda 369,589 2.0042
4 Joshua 396,328 2.0628 Ashley 352,033 1.9090
5 David 383,258 1.9947 Sarah 272,376 1.4771
...
MODIFY the BabyNames.java program to handle them. Also modify the program so that it prompts the user for a file name.
Here is a sample program run:
Filename: babynames80s.txt
1 Michael Jessica
2 Christopher Jennifer
3 Matthew Amanda
4 Joshua Ashley
5 David Sarah
6 James Stephanie
7 Daniel Melissa
8 Robert Nicole
9 John Elizabeth
10 Joseph Heather
11 Jason Tiffany
12 Justin Michelle
13 Andrew Amber
14 Ryan Megan
15 William Amy
16 Brian Rachel
17 Brandon Kimberly
18 Jonathan Christina
19 Nicholas Lauren
20 Anthony Crystal
21 Eric Brittany
22 Adam Rebecca
23 Kevin Laura
24 Thomas Danielle
25 Steven Emily
26 Timothy Samantha
27 Richard Angela
28 Jeremy Erin
29 Jeffrey Kelly
30 Kyle Sara
31 Benjamin Lisa
32 Aaron Katherine
33 Charles Andrea
34 Mark Jamie
35 Jacob Mary
36 Stephen Erica
37 Patrick Courtney
38 Scott Kristen
39 Nathan Shannon
40 Paul April
41 Sean Katie
42 Lindsey
43 Kristin
44 Lindsay
45 Christine
46 Alicia
47 Vanessa
48 Maria
49 Kathryn
50 Allison
51 Julie
52 Anna
53 Tara
54 Kayla
55 Natalie
56 Victoria
57 Monica
58 Jacqueline
59 Holly
60 Kristina
61 Patricia
62 Cassandra
63 Brandy
64 Whitney
65 Chelsea
66 Brandi
67 Catherine
68 Cynthia
69 Kathleen
70 Veronica
71 Leslie
72 Natasha
73 Krystal
74 Stacy
75 Diana
76 Erika
77 Dana
78 Jenna
79 Meghan
80 Carrie
81 Leah
82 Melanie
83 Brooke
84 Karen
85 Alexandra
86 Valerie
87 Caitlin
88 Julia
89 Alyssa
90 Jasmine
91 Hannah
92 Stacey
93 Brittney
94 Susan
95 Margaret
96 Sandra
97 Candice
98 Latoya
99 Bethany
100 Misty
BELOW is the BabyNames.java code:
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class BabyNames
{
public static final double LIMIT = 50;
public static void main(String[] args) throws FileNotFoundException
{
Scanner in = new Scanner(new File("babynames.txt"));
RecordReader boys = new RecordReader(LIMIT);
RecordReader girls = new RecordReader(LIMIT);
while (boys.hasMore() || girls.hasMore())
{
int rank = in.nextInt();
System.out.print(rank + " ");
boys.process(in);
girls.process(in);
System.out.println();
}
in.close();
}
}
BELOW is the BabyNames.java
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class BabyNames
{
public static final double LIMIT = 50;
public static void main(String[] args) throws FileNotFoundException
{
Scanner in = new Scanner(new File("babynames.txt"));
RecordReader boys = new RecordReader(LIMIT);
RecordReader girls = new RecordReader(LIMIT);
while (boys.hasMore() || girls.hasMore())
{
int rank = in.nextInt();
System.out.print(rank + " ");
boys.process(in);
girls.process(in);
System.out.println();
}
in.close();
}
}
BELOW IS THE RecordReader.java
import java.util.Scanner;
/**
This class processes baby name records.
*/
public class RecordReader
{
private double total;
private double limit;
/**
Constructs a RecordReader with a zero total.
*/
public RecordReader(double aLimit)
{
total = 0;
limit = aLimit;
}
/**
Reads an input record and prints the name if the current total is less
than the limit.
@param in the input stream
*/
public void process(Scanner in)
{
String name = in.next();
int count = in.nextInt();
double percent = in.nextDouble();
if (total < limit) { System.out.print(name + " "); }
total = total + percent;
}
/**
Checks whether there are more inputs to process
@return true if the limit has not yet been reached
*/
public boolean hasMore()
{
return total < limit;
}
}
YOUR main class should be called BabyNames.