Java上机实现统计某一目录下每个文件中出现的字母个数、数字个数、空格个数及行数？

Posted 2023-03-09

try
//指定你所要查看的文件绝对路径
InputStream fi = new FileInputStream("D:/admin.txt");
BufferedReader reader = new BufferedReader(new InputStreamReader(fi));
String line;
String newli = "";
int hang =0;//记录行数
int zifu =0;//记录字符出现的个数
int shuzi = 0;//记录数字出现的个数
int kongge = 0;//记录空格出现的次数
line = reader.readLine();
while (line != null)

hang ++;
for(int i=0;i<line.length();i++)

if(Character.isDigit(line.charAt(i)))

shuzi++;

else if(Character.isJavaLetter(line.charAt(i)))

zifu++;
else if(line.substring(i, i+1).equals(" "))

kongge++;



line = reader.readLine(); // 读取下一行
System.out.println("空格出现了"+kongge+"个");
System.out.println("字母出现了"+zifu+"个");
System.out.println("数字出现了"+shuzi+"个");
System.out.println("一共出现了"+hang+"行");

catch (FileNotFoundException e)
// TODO Auto-generated catch block
e.printStackTrace();
catch (IOException e)
// TODO Auto-generated catch block
e.printStackTrace();
参考技术A 字母：(numOfLetter>='a'&&numOfLetter<='z' )||(numOfLetter>='A'&&NumOfLetter<='Z')数字：num>=0&&num<=9空格：' '行数：getLineNumber()