import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;
public class ReadWords {
public static void main(String[] args)throws IOException
{
List<Integer> list=new ArrayList<>();
DecimalFormat df=new DecimalFormat("######0.00");
FileInputStream fip = new FileInputStream("C:\\\\\\\\Users\\\\26218\\\\Documents\\\\Tencent Files\\\\2621843759\\\\FileRecv\\\\Harry.txt");
InputStreamReader reader = new InputStreamReader(fip, "gbk");
StringBuffer sb = new StringBuffer();
while (reader.ready()) {
sb.append((char) reader.read());
}
reader.close();
fip.close();
int i;
String A=sb.toString();
String M="abcdefghijklmnopqrstuvwxyz";
String temp = "";
char NUM[]=new char[A.length()];
char Z[]=new char[26];
int X[]=new int[26];
int MAX=0;
Z=M.toCharArray();
for(int k=0;k<26;k++)
{
X[k]=0;
for(i=0;i<A.length();i++)
{
NUM[i]=A.charAt(i);
if(Z[k]==NUM[i]||Z[k]==ch(NUM[i]))
{
X[k]++;
}
}
}
double sum=0;
for(i=0;i<25;i++)
for(int k=0;k<25-i;k++)
{
if(X[k]<X[k+1])
{
int temp2=X[k];
X[k]=X[k+1];
X[k+1]=temp2;
char temp3=Z[k];
Z[k]=Z[k+1];
Z[k+1]=temp3;
}
}
for(i=0;i<26;i++) {
sum=sum+X[i];
}
for(i=0;i<26;i++)
{
double jkl=(X[i])/sum*100;
System.out.println(Z[i]+"字母个数为:"+X[i]+"字母频率为:"+df.format(jkl)+"%");
}
}
static char ch(char c)
{
if(!(c>=97&&c<=122))
c+=32;
return c;
}
}