问题描述
这是我简化您的代码并获得正确结果的方式：
String rope = "and , and,and , to , to,to , you ,you , you, for ,for , for,a , a,e , e,i , i,o , o,u , u";
// rope = rope.replaceAll(" ", "");
rope = rope.replaceAll("and", "&");
rope = rope.replaceAll("to", "2");
rope = rope.replaceAll("you", "U");
rope = rope.replaceAll("for", "4");
rope = rope.replaceAll("a", "");
rope = rope.replaceAll("e", "");
rope = rope.replaceAll("i", "");
rope = rope.replaceAll("o", "");
rope = rope.replaceAll("u", "");
System.out.println(rope);
解决方法
我应该输入一个字符串，并更换所有and，to，you，和for与子&，2，U，和4。
输入字符串时"and,and,to,you,for,a,e,i,o,u,u"，仅and在打印时输出。
public void simplify()
{
System.out.println("Enter a string to simplify: ");
String rope = in.next();
System.out.println(simplifier(rope));
}
public String simplifier(String rope)
{
rope = rope.replace(" and "," & ");
rope = rope.replace(" and"," &");
rope = rope.replace("and ","& ");
rope = rope.replace(" to "," 2 ");
rope = rope.replace(" to"," 2");
rope = rope.replace("to ","2 ");
rope = rope.replace(" you "," U ");
rope = rope.replace("you ","U ");
rope = rope.replace(" you"," U");
rope = rope.replace(" for "," 4 ");
rope = rope.replace("for ","4 ");
rope = rope.replace(" for"," 4");
rope = rope.replace("a ","");
rope = rope.replace(" a","");
rope = rope.replace("e ","");
rope = rope.replace(" e","");
rope = rope.replace("i ","");
rope = rope.replace(" i","");
rope = rope.replace(" o","");
rope = rope.replace("o ","");
rope = rope.replace("u ","");
rope = rope.replace(" u","");
System.out.print(rope);
return rope;
}
输出：and and
似乎在第一个空格后切断了返回的字符串
我不知道发生了什么，为什么不按预期工作。我究竟做错了什么？