转换格式全名模式字符串[复制]

Question

这个问题在这里已有答案：

• How to capitalize the first character of each word in a string 48回答

我有一个字符串“adam levine”。如何将每个单词的首字母转换为大写，如“Adam Levine”？

String line = "adam levine";
line = line.substring(0, 1).toUpperCase() + line.substring(1);
System.out.println(line); // Adam levine

Answer 1

private static final Pattern bound = Pattern.compile("\\b(\\w)");

public static String titleize(final String input) {
    StringBuffer sb = new StringBuffer(input.length());
    Matcher mat = bound.matcher(input);
    while (mat.find()) {
        mat.appendReplacement(sb, mat.group().toUpperCase());
    }
    mat.appendTail(sb);
    return sb.toString();
}