将包含多个句子的字符串中的句子的首字母大写

使用StringBuilder，无需拆分和创建其他字符串，依此类推，请参见代码

public static void main(String... args) {String text = "this is a.line is. over";int pos = 0;boolean capitalize = true;StringBuilder sb = new StringBuilder(text);while (pos < sb.length()) {    if (sb.charAt(pos) == '.') {        capitalize = true;    } else if (capitalize && !Character.isWhitespace(sb.charAt(pos))) {        sb.setCharAt(pos, Character.toUpperCase(sb.charAt(pos)));        capitalize = false;    }    pos++;}System.out.println(sb.toString());}