Question

我是java的菜鸟。我正在尝试创建一个while循环，它将在每个进程后提示用户;至于他们是否希望继续。我的进步看起来像这样。

    String proString,answer;
    char t,f,x;
    boolean exitTime;
    exitTime = false;
    proString = " Would You Like To Continue? \n";
    while(!exitTime) {
        continue;
    }
    answer = JOptionPane.showInputDialog(null," Would You Like To Continue? T/F ",HEADING,JOptionPane.INFORMATION_MESSAGE);
    x = char.parseChar(answer);

我也尝试了以下内容但无济于事......

    Prompt= JOptonPane.showInputDialog(null,proString,HEADING,JOptionPane.QUESTION_MESSAGE); 
    input = char.parseChar(Prompt);
    if(input == "y") {
        break;
    }
    else if(input == "n") {
    }
    input = char.parseChar(Prompt);
    if(input != "y"||"n") {
        JOptionPane.showMessageDialog(null,"Invalid Input", "Error", JOptionPane.INFORMATION_MESSAGE);
    }
    else {
    }

我想我的问题归结为我应该使用JOptionPane.showInputDialog（...）或JOptionPane.showConfirmDialog（...）还是其他方法？请告诉我你将如何做到这一点。

Answer 1

您需要的是使用do-while循环：

var mailString = EMAIL_TO.toString();
var elements = mailString.split(", ")  //The separator for the mail sender
var email_to_result=true;

for (i=0;i<elements.length;i++){
       if(!isMailValid( elements[i] )){
        email_to_result = false;
        email_to_errors = "Mail not valid"; //i've added all the wrong mail
    }
}

我没有测试过它，但它应该解释你的逻辑。

无法创建while / boolean循环

1 个答案: