我正在尝试查找字符串中辅音的数量。以下是该方法的代码,但是在运行该方法时,它始终返回0。我在用!错误?我是否需要针对每个案例进行处理?即:!(ch ==('a'))|| !(ch ==('o'))
public int numCons() {
int i = 0;
int length = quote.length();
int con = 0;
String string;
for (i = 0; i < length; i++) {
//string = quote.substring(i);
char ch = quote.charAt(i);
if (!(ch == ('a') || ch == ('e') || ch == ('i')
|| ch == ('o') || ch == ('u') || ch == ('y') || ch == ('A')
|| ch == ('E') || ch == ('I') || ch == ('O') || ch == ('U') || ch == ('Y')))
if (Character.isLetter(i))
con++;
}
return con;
}
答案 0 :(得分:5)
i
是您要遍历的索引,而不是字符。你可能是说要检查
if (Character.isLetter(ch))
答案 1 :(得分:1)
顺便说一句,如果您使用的是Java 8+,则可以使用Stream API在一行中完成此操作:
private void writeToFile(String data,Context context) {
try {
OutputStreamWriter outputStreamWriter = new OutputStreamWriter(context.openFileOutput("time.txt", Context.MODE_PRIVATE));
outputStreamWriter.write(data);
outputStreamWriter.close();
}
catch (IOException e) {
Log.e("Exception", "File write failed: " + e.toString());
}
(可能还有一种更优雅的方式,这只是我写的第一件事)