识别字符串数组中的文本 [英] Recognizing text in a String Array

问题描述

我正在为学校做一个项目，一个迷你文本编辑器。其中一个基本功能是让用户插入文本。关键是我们要控制输入，使用循环，蜇和数组。

I am doing a project for school right now, a mini text editor. One of the basic functions is letting the user insert text, obviously. The point if for us to control input, use loops, stings and arrays.

do{
    System.out.println("Insira o seu texto (duplo ENTER volta ao Menu):");
    linhas [nLinhas] = input.nextLine();
}
while (!Arrays.asList(linhas).contains(""));

我要求用户输入文字，当他们做双输入时，他们会回到菜单。然而，这种情况并没有发生......我已经从网上搜索中添加了币，但我不能使用它，否则我将受到惩罚...

I'm asking the user to enter text, and when they do a double ENTER, they'll be back to the Menu. However, this isn't happening... I've added the cointains from a search I did online, but I can't use it, otherwise I'm going to be penalized...

我必须用一段时间来做这件事，那么如何设置呢？我已经尝试使用拆分，因为目标是只要插入带有（无）的行就使文本输入停止，但它不起作用...

I have to do this with a do-while, so how do I set up the while? I have tried this using a split, since the objective is to make the text input stop whenever a line with "" (nothing) is inserted, but it didn't work...

任何帮助都会很棒！

更新：

switch (escolhaMenu){
    case 'i':
    case 'I':
        System.out.println("\nEscolheu a opção: \"Inserir linhas no fim (termine com uma linha vazia)\"\n");

        do{
            System.out.println("Insira o seu texto (duplo ENTER volta ao Menu):");
            linhas [nLinhas] = input.nextLine();
        }
        while (!Arrays.asList(linhas).contains(""));

        break;

推荐答案

不会是

while (!Arrays.asList(linhas).contains(""));

？

如你所愿检查数组是否包含空字符串？

As in, you want to check that the Array doesn't contain an empty string?

另外，我看到你关于无法使用包含的说明。 。 。试试这个：

Also, I see your note about not being able to use "contains" . . . Try this:

boolean done = false;
do {
    do stuff
    String input = input.nextLine();
    if (input.equals("") {
        done = true;
    } 
} while (!done) ;

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