Java中是否内置了一个函数，使字符串中每个单词的第一个字符大写，而不影响其他字符?
例子:
乔恩·斯基特->乔恩·斯基特 miles o'Brien -> miles o'Brien (B仍然是大写，这排除了Title Case) 老麦当劳->
*(老麦当劳也会被发现，但我不指望它有那么聪明。)
快速浏览一下Java字符串文档就会发现只有toUpperCase()和toLowerCase()，它们当然没有提供所需的行为。当然，谷歌的结果主要是这两个函数。它看起来像一个已经被发明出来的轮子，所以问一下也无妨，这样我以后就可以用它了。
当前回答
这条适用于姓氏的情况……
使用不同类型的分隔符，并且它保持相同的分隔符:
jean-frederic -> jean-frederic jean frederic——> jean frederic
该代码与GWT客户端一起工作。
public static String capitalize (String givenString) {
String Separateur = " ,.-;";
StringBuffer sb = new StringBuffer();
boolean ToCap = true;
for (int i = 0; i < givenString.length(); i++) {
if (ToCap)
sb.append(Character.toUpperCase(givenString.charAt(i)));
else
sb.append(Character.toLowerCase(givenString.charAt(i)));
if (Separateur.indexOf(givenString.charAt(i)) >=0)
ToCap = true;
else
ToCap = false;
}
return sb.toString().trim();
}
其他回答
String toBeCapped = "i want this sentence capitalized";
String[] tokens = toBeCapped.split("\\s");
toBeCapped = "";
for(int i = 0; i < tokens.length; i++){
char capLetter = Character.toUpperCase(tokens[i].charAt(0));
toBeCapped += " " + capLetter + tokens[i].substring(1);
}
toBeCapped = toBeCapped.trim();
这是另一种表达方式:
private String capitalize(String line)
{
StringTokenizer token =new StringTokenizer(line);
String CapLine="";
while(token.hasMoreTokens())
{
String tok = token.nextToken().toString();
CapLine += Character.toUpperCase(tok.charAt(0))+ tok.substring(1)+" ";
}
return CapLine.substring(0,CapLine.length()-1);
}
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the sentence : ");
try
{
String str = br.readLine();
char[] str1 = new char[str.length()];
for(int i=0; i<str.length(); i++)
{
str1[i] = Character.toLowerCase(str.charAt(i));
}
str1[0] = Character.toUpperCase(str1[0]);
for(int i=0;i<str.length();i++)
{
if(str1[i] == ' ')
{
str1[i+1] = Character.toUpperCase(str1[i+1]);
}
System.out.print(str1[i]);
}
}
catch(Exception e)
{
System.err.println("Error: " + e.getMessage());
}
public void capitaliseFirstLetterOfEachWord()
{
String value="this will capitalise first character of each word of this string";
String[] wordSplit=value.split(" ");
StringBuilder sb=new StringBuilder();
for (int i=0;i<wordSplit.length;i++){
sb.append(wordSplit[i].substring(0,1).toUpperCase().
concat(wordSplit[i].substring(1)).concat(" "));
}
System.out.println(sb);
}
String toUpperCaseFirstLetterOnly(String str) {
String[] words = str.split(" ");
StringBuilder ret = new StringBuilder();
for(int i = 0; i < words.length; i++) {
ret.append(Character.toUpperCase(words[i].charAt(0)));
ret.append(words[i].substring(1));
if(i < words.length - 1) {
ret.append(' ');
}
}
return ret.toString();
}
