如何删除字符串中的空格？

Question

我有代码，用户输入一个字符串，我需要在多个单词的中间删除空格。

这就是我所拥有的：

`System.out.println("Enter your choice:\n"
            + "Type 'Player Name' to search for a player based off their name.\n"
            + "Type 'Player School' to search for a player based off their school\n"
            + "Type 'Team Location' to search for a team based off their location.\n"
            + "Type 'Team Mascot' to search for a team based off their mascot.\n");
    String choice = input.next();
    choice = choice.replaceAll("\\s+", "");
    System.out.println(choice);
    switch(choice.toLowerCase()){
    case "playername":
        searchPlayer();
        break;
    case "playerschool":
        searchSchool();
        break;
    case "teamlocation":
        searchLocation();
        break;
    case "teammascot":
        searchMascot();
        break;
    default:
        System.out.println("Yet to be implemented");
        break;
    }`

这给了我没有错误，但是当我包含空格时它总是返回默认情况。 我把线条打印出选择，看看为什么它不起作用，当我运行它时它只保留第一个字。 例如，如果我输入＆＃34;播放器名称＆＃34;它将返回＆＃34;播放器＆＃34;。

Answer 1

使用input.nextLine()更改input.next()以考虑整行输入。 input.next()将输入保存到分隔符的位置，默认情况下是一个或多个空格。