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import java.util.*;
import java.io.*;
public class CharacterFrequency
{
public static void main(String[] args)
{
File f = new File("letter1.txt");
Scanner s;
try
{
s = new Scanner(f);
}
catch (Exception e)
{
System.out.println("Big error!");
return;
}
FrequencyBag<Character> fb = new FrequencyBag<Character>();
while(s.hasNextLine())
{
String s1 = s.nextLine();
for(char c : s1.toCharArray())
{
fb.add(new Character((char)(c<='Z'&&c>='A'?c+0x20:c)));
}
}
System.out.println("Character: Frequency\n===================");
for(int i=0x61;i<=0x7A;i++)
{
System.out.println((char)i+": "+fb.getFrequencyOf(new Character((char)i)));
}
}
}
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