Java 当我阅读此文件时,有人能帮我在代码中添加行计数器吗
我不确定如何添加行计数器,因为如果我执行while语句,例如Java 当我阅读此文件时,有人能帮我在代码中添加行计数器吗,java,Java,我不确定如何添加行计数器,因为如果我执行while语句,例如 while (fileReader.hasNextLine()) { lines+=1; file.nextLine(); } 然后我剩下的元音、句子等都设置为0 我的代码是: Scanner input = new Scanner(System. in ); System.out.println("Enter file name: "); File file = new File(input.nextLine()
while (fileReader.hasNextLine()) {
lines+=1;
file.nextLine();
}
然后我剩下的元音、句子等都设置为0
我的代码是:
Scanner input = new Scanner(System. in );
System.out.println("Enter file name: ");
File file = new File(input.nextLine());
if (file.length() == 0) {
System.out.println("The input file is empty.");
System.exit(1);
}
Scanner fileReader = new Scanner(file);
while (fileReader.hasNext()) {
String word = fileReader.next();
for (int i = 0; i < word.length(); i++) {
char ch = word.charAt(i);
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') vowels += 1;
if ((ch == '!' || ch == '.' || ch == '?')) sentences += 1;
if (Character.isLetterOrDigit(ch)) alphaNumeric += 1;
switch (ch) {
case ',':
punctuation += 1;
break;
case '[':
punctuation += 1;
break;
case ']':
punctuation += 1;
break;
case ':':
punctuation += 1;
break;
case '`':
punctuation += 1;
break;
case '-':
punctuation += 1;
break;
case '!':
punctuation += 1;
break;
case '_':
punctuation += 1;
break;
case '(':
punctuation += 1;
break;
case ')':
punctuation += 1;
break;
case '.':
punctuation += 1;
break;
case '?':
punctuation += 1;
break;
case '"':
punctuation += 1;
break;
case ';':
punctuation += 1;
break;
}
}
words += 1;
}
System.out.println("The number of words in the file name: " + words);
System.out.println("The number of lines in the file name: " + lines);
System.out.println("The number of alphanumeric characters " + "in the file name: " + alphaNumeric);
System.out.println("The number of sentences in the file name: " + sentences);
System.out.println("The number of vowels in the file name: " + vowels);
System.out.println("The number of punctuations in the file name: " + punctuation);
扫描仪输入=新扫描仪(System.in);
System.out.println(“输入文件名:”);
File File=新文件(input.nextLine());
如果(file.length()==0){
System.out.println(“输入文件为空”);
系统出口(1);
}
Scanner fileReader=新扫描仪(文件);
while(fileReader.hasNext()){
String word=fileReader.next();
for(int i=0;i
新行由字符“\n”表示。您可以检查其实例,方法与检查元音、标点符号等相同。使用这些行集
String line = fileReader.nextLine();
for (int i = 0; i < line.length(); i++) {
char ch = line.charAt(i);
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') vowels += 1;
if ((ch == '!' || ch == '.' || ch == '?')) sentences += 1;
if (Character.isLetterOrDigit(ch)) alphaNumeric += 1;
switch (ch) {
// do something
}
}
lines ++;
words += line.split(" ").length;
String line=fileReader.nextLine();
对于(int i=0;i
在您的原始代码中,单词只是行。它们不是这样的单词。对LineNumberReader有异议吗?您可以在
next
上使用nextLine
。这需要您解析String
,但会更容易计算行数-IMHOYoucase
语句可以组合为:>切换(ch){case',':case'[':case']':/**更多符号**/标点符号+=1;break;}
,您可以将元音+=1
替换为+元音
或元音+
,以简化操作。移动此条件:如果(Character.isletorDigit(ch))
到顶部,因为字母也是字母数字,您可以保存一些检查。在这种情况下,标点符号也会切换到else
。我仍然感到困惑,因为我的循环只考虑单词而不是空格或\n