java 去掉或替换字符串中指定字符或空格或 等_C/C++_编程开发_程序员俱乐部

public static void main(String args[])
{
    String str = "a b       c   d   e   f";
    String test = str.replaceAll("\\s{1,}", "");
    System.out.println(test);
}

public static void main(String args[])
{
    String str = "aaaaaaaaabbbbbbaaaaaaaa";
    String test = str.replaceAll("b", "c");
    System.out.println(test);
}