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1 import java.io.*; 3v public class Main public static void main(String[] args) throws IOException 5 { 4 6 BufferedReader fr = new BufferedReader (new FileReader ( "Data.txt")); 8 String nam[] = new String[5]; float[] age = new float [5]; float total = 0; 10 11 12 13 for (int i=0; i< nam.length;i++) 14 v 15 { String temp = fr.readLine( ); String bits[] = temp.split(","); %3D 17 91 18 19 20 nam[i] = bits[0]; age[i] total = total + age[i]; Integer.parseInt(bits[1]); %3D } 2 float average total/5; 4 fr.close(); System.out.println(average); PrintWriter fw = new PrintWriter (new FileWriter ("TCats.txt")); 7. 6. for(int i-0; i < nam.length; i++) 56

1 import java.io.*; 3v public class Main public static void main(String[] args) throws IOException 5 { 4 6 BufferedReader fr = new BufferedReader (new FileReader ( "Data.txt")); 8 String nam[] = new String[5]; float[] age = new float [5]; float total = 0; 10 11 12 13 for (int i=0; i< nam.length;i++) 14 v 15 { String temp = fr.readLine( ); String bits[] = temp.split(","); %3D 17 91 18 19 20 nam[i] = bits[0]; age[i] total = total + age[i]; Integer.parseInt(bits[1]); %3D } 2 float average total/5; 4 fr.close(); System.out.println(average); PrintWriter fw = new PrintWriter (new FileWriter ("TCats.txt")); 7. 6. for(int i-0; i < nam.length; i++) 56

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Please help I don’t understand this
1 import java. io.*; 3v public class Main { 4 public static void main(String[] args) throws IOException 5 v 6. BufferedReader fr = new BufferedReader (new 7. FileReader ("Data.txt")); 8. String nam[] = new String[5]; float[] age = new float [5]; float total = 0; 9. 10 11 12 for (int i=0; i< nam.length; i++) { 13 14 v 15 String temp fr.readLine(); %3D 16 String bits[] = temp.split(","); 17 nam[i] = bits[0]; age[i] = Integer.parseInt(bits[1]); total = total + age[i]; 18 19 20 21 22 float average = total/5; 23 24 fr.close(); 25 System.out.println(average); PrintWriter fw = new PrintWriter (new FileWriter ("TCats.txt")); 26 27 28 29 for(int i-0; i< nam. length; i++) 30
Transcribed Image Text:1 import java. io.*; 3v public class Main { 4 public static void main(String[] args) throws IOException 5 v 6. BufferedReader fr = new BufferedReader (new 7. FileReader ("Data.txt")); 8. String nam[] = new String[5]; float[] age = new float [5]; float total = 0; 9. 10 11 12 for (int i=0; i< nam.length; i++) { 13 14 v 15 String temp fr.readLine(); %3D 16 String bits[] = temp.split(","); 17 nam[i] = bits[0]; age[i] = Integer.parseInt(bits[1]); total = total + age[i]; 18 19 20 21 22 float average = total/5; 23 24 fr.close(); 25 System.out.println(average); PrintWriter fw = new PrintWriter (new FileWriter ("TCats.txt")); 26 27 28 29 for(int i-0; i< nam. length; i++) 30
fw.printin(nam[i + * is aget 3 "years old."); 31 32 33 fw.printin( "The average age inCat years is . fw.closel ); 34 average years old."); 35 36 37
Transcribed Image Text:fw.printin(nam[i + * is aget 3 "years old."); 31 32 33 fw.printin( "The average age inCat years is . fw.closel ); 34 average years old."); 35 36 37
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