Java：如果变量为空（来自用户输入）；休息; 否则继续main方法
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Java: If variable is empty (from user input); break; else continue the main method
提问by jtaylor94
sorry if this is a silly question but I am looking for a way to break and start another iteration of the loop if the user's input is null. Here's my code:
对不起，如果这是一个愚蠢的问题，但我正在寻找一种方法，如果用户的输入为空，则中断并开始循环的另一次迭代。这是我的代码：
while(true) {
// Get the users input
Scanner Input = new Scanner(System.in);
System.out.println("Enter text:");
String studentInfo = Input.nextLine();
if (studentInfo == null) {
System.out.println("Please enter valid infomation.");
break;
}
continue;
}
After the break, I want it to go back to the while(true) and start again from there, by asking the user for an input again.
休息后，我希望它返回到 while(true) 并从那里重新开始，通过再次要求用户输入。
Thanks guys,
谢谢你们，
JT
JT
采纳答案by Mena
Check for:
检查：
if (studentInfo.isEmpty()) {
continue;
}
Remove the Scanner input = new Scanner(System.in);declaration from inside the whileloop.
Scanner input = new Scanner(System.in);从while循环内部删除声明。
