java Joption窗格显示选项对话框

Question

我想使用JOptionPane创建一个showOptionDialog，它有两个按钮：公制和英制。如果单击Metric，则将加载Metric GUI。相反，如果单击Imperial，则将加载Imperial GUI

我该怎么做？ 非常感谢

Answer 1

Object[] options = {"Metric","Imperial"};
int n = JOptionPane.showOptionDialog(null,
            "A Message",
            "A Title",
            JOptionPane.YES_NO_CANCEL_OPTION,
            JOptionPane.DEFAULT_OPTION,
            null,
            options,
            options[1]);  

System.out.println(n);  

JFrame metric = new JFrame("Metric");  
metric.setBounds(0, 0, 320, 240);  

JFrame imperial = new JFrame("Imperial");  
imperial.setBounds(0, 0, 320, 240);  

if(n==0){  
     metric.setVisible(true);  
}else if(n==1){
    imperial.setVisible(true);
}else{
    System.out.println("no option choosen");
}

Answer 2

int choice = JOptionPane.showOptionDialog(null, //Component parentComponent
                               "Metric or Imperial?", //Object message,
                               "Choose an option", //String title
                               JOptionPane.YES_NO_OPTION, //int optionType
                               JOptionPane.INFORMATION_MESSAGE, //int messageType
                               null, //Icon icon,
                               {"Metric","Imperial"}, //Object[] options,
                               "Metric");//Object initialValue 
if(choice == 0 ){
   //Metric was chosen
}else{
   //Imperial was chosen
}