[英]If the user enters a blank space as their input, how would you read that as a “ ” string?
//Example: Scanner scanner = new Scanner(System.in); String character = scanner.next(); //User hits the space bar and hits enter System.out.println(character); //character should = " "
scanner.next()為您提供下一個完整的令牌，其定義如下：
一個完整的標記前后是匹配分隔符模式的輸入。
如果你想要空間，我假設你想要整條線。 您應該告訴掃描儀獲取整行或將掃描儀的分隔符設置為換行符。 請參閱scanner.nextLine()和scanner.useDelimiter() 。
Java-如果用戶輸入無效的輸入，如何返回異常？
[英]Java - How would I return an exception if the user enters a invalid input?
在用戶在Java中輸入空白行之前，我將如何進行此循環？
[英]How would I make this loop until the user enters a blank line in java?
在用戶輸入空行之前，如何一直要求用戶進行雙重輸入？
[英]How do I keep asking the user for a double input till the user enters a blank line?
如果沒有從用戶讀取輸入（空白行），我想退出程序
[英]I would like to exit a program if no input is read from user (blank line)
在 java 上輸入字符串的 eOne Dimensional Array。 不知道如何讓數組停止輸入，直到用戶輸入“alldone”
[英]eOne Dimensional Array with string input on java. Do not know how to make the array stop taking input until the user enters "alldone"
如何控制用戶在輸入提示中輸入多少個字母和數字？
[英]How to control how many letters and numbers the user enters into an input prompt?
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