以前的相关问题：检查选择了哪些jRadioButtons（如果它们是在循环中创建的）
我现在想创建一个布尔值，当从每一行中选择所有正确的JRadioButtons时，这个布尔值将为真。
澄清一下，只有当选择了所有单选按钮（每行一个）时，它才是正确的。
下面的代码只有在选择了正确的JRadioButton时才打印了一行和btn，但是我不确定现在如何将其实现到我正在寻找的内容中。提前致谢
//loop for making flow layout for each line of random letters
//counter for having number of the row next to each row in order of selection
int counter = x;
for(int i = 0; i < x; i++)
{
//new jpanel created for every row needed for the word
JPanel jpLine = new JPanel(new FlowLayout());
//new jlabel made with counter number for each row
JLabel count = new JLabel(Integer.toString(counter));
jpLine.add(count);
counter--;
//random number from 0-5 generated for each row
Random number = new Random();
int low = 0;
int high = 5;
int ranNumber = number.nextInt((high - low) + low);
//buttongroup outside loop so only one button can be pressed for each row
ButtonGroup bg = new ButtonGroup();
//get selected button's index in any group with bg.getSelection().getActionCommand()
final int row = i;
final ButtonGroup btnG = bg;
ActionListener listener = new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
//correct.setText("correct");
System.out.println("row " + row);
System.out.println("btn " + btnG.getSelection().getActionCommand());
}
};
//loop for making the number of letters in each row - always going to be 6 letters to choose from in each row
for(int j = 0; j < 5; j++)
{
//if the random number generated for each row equals the loop
//then new radiobutton will be created for the ith letter of the reversed
//answer, starting from charAt 0 and going to the last character
if(ranNumber == j)
{
JRadioButton answerLetter = new JRadioButton("<html><font color = 'white'>" + answerForGrid.charAt(i) + "</font></html>");
bg.add(answerLetter);
answerLetter.setBackground(Color.decode("#566771"));
answerLetter.setOpaque(true);
jpLine.add(answerLetter);
//use setActionCommand("" + j) on each button to associate each button with its index
answerLetter.setActionCommand("" + j);
answerLetter.addActionListener(listener);
}
//ranLetter is generated randomly from the alphabet string, so random letters are
//created for each jradiobutton
final String alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
final int N = alphabet.length();
Random letter = new Random();
char ranLetter;
while(true)
{
ranLetter = alphabet.charAt(letter.nextInt(N));
break;
}
JRadioButton k = new JRadioButton("<html><font color = 'white'>" + ranLetter + "</font></html>");
bg.add(k);
k.setBackground(Color.decode("#566771"));
k.setOpaque(true);
jpLine.add(k);
}
//add each row of letters (jpLine) to this loops jpanel
jpCenterCenter.add(jpLine);
}
使用您的代码，您可以在初始循环之前声明一个布尔数组，如下所示：
int counter = x;
boolean[] responses = new boolean[x]
for(int i = 0; i < x; i++)
{
//new jpanel created for every row needed for the word
JPanel jpLine = new JPanel(new FlowLayout());
然后，您要编辑 actionListener，以便在选中时将行的布尔值切换为 true。 请务必注意，如果执行此操作，则需要将侦听器添加到其他按钮，以便如果用户选择正确的选项，然后切换到错误的选择，布尔值将返回为 false。
ActionListener listener = new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
//correct.setText("correct");
String action = e.getActionCommand();
if (action.equals("Incorrect")) {
reponses[row] = false;
}
else {
responses[row] = true;
System.out.println("row " + row);
System.out.println("btn " + action);
}
}
};
不要忘记在此处将其添加到其他按钮中：
JRadioButton k = new JRadioButton("<html><font color = 'white'>" + ranLetter + "</font></html>");
k.setActionCommand("Incorrect");
k.addActionListener(listener);
然后，您可以添加一个单独的方法来检查是否所有响应都设置为 true：
private boolean checkAnswers(boolean[] responses) {
for (boolean b : responses) {
if (!b) return false
}
return true;
}