Java 安装向导的错误编译错误找不到符号

我正在为税务应用程序制作一个安装向导，但遇到了一些我不知道如何解决的错误。请帮忙！ 我的错误是：

Setup.java:16: error: cannot find symbol
                Colors = new String[]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};
                ^
  symbol:   variable Colors
  location: class Setup
Setup.java:17: error: cannot find symbol
                final JList colors = new JList(Colors);
                                               ^
  symbol:   variable Colors
  location: class Setup
Setup.java:24: error: cannot find symbol
                        Colors = new String[]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};
                        ^
  symbol: variable Colors
Setup.java:25: error: cannot find symbol

如果有人知道答案，并使用StackOverflow，请让他们回答这个问题！ 这是我的密码：

import java.awt.event.*;
import javax.swing.event.*;
public class Setup {
    @SuppressWarnings("unchecked")
    private static String colorSelected;
    public static void main(String[] args) {
        final JFrame f = new JFrame("Test Setup wizard");
        Container a = f.getContentPane();
        a.setBackground(Color.white);
        a.setLayout(new  FlowLayout());
        JLabel question1 = new JLabel("What would you like the background color to be?");
        JButton Next = new JButton("Next");
        Colors = new String[]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};
        final JList colors = new JList(Colors);
        colors.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        colors.setLayoutOrientation(JList.VERTICAL);
        JScrollPane listScroller = new JScrollPane(colors);
        colors.addListSelectionListener(new ListSelectionListener() {
                public void valueChanged(ListSelectionEvent e) {
                    int index = e.getFirstIndex();
                    Colors = new String[]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};
                    String colorSelected = Colors[index];
                    }
                });
        f.add(question1);
        f.add(listScroller);
        f.add(Next);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setSize(500,500);
        f.setVisible(true);
        final ImageIcon img = new ImageIcon("HardDisk.jpg");
        f.setIconImage(img.getImage());
        Next.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent Ev) {
                    final Color[] Selected = new Color[1];
                    if (colorSelected .equals("black")) {
                        Selected[0] = new Color(0,0,0);
                    }
                    else if (colorSelected .equals("blue")) {
                        Selected[0] = new Color(0,0,255);
                    }
                    else if (colorSelected .equals("cyan")) {
                        Selected[0] = new Color(0,225,225);
                    }
                    else if (colorSelected .equals("darkGray")) {
                        Selected[0] = new Color(169,169,169);
                    }
                    else if (colorSelected .equals("gray")) {
                        Selected[0] = new Color(128,128,128);
                    }
                    else if (colorSelected .equals("green")) {
                        Selected[0] = new Color(0,255,0);
                    }
                    else if (colorSelected .equals("lightGray")) {
                        Selected[0] = new Color(211,211,211);
                    }
                    else if (colorSelected .equals("magenta")) {
                        Selected[0] = new Color(255,0,255);
                    }
                    else if (colorSelected .equals("orange")) {
                        Selected[0] = new Color(255,165,0);
                    }
                    else if (colorSelected .equals("pink")) {
                        Selected[0] = new Color(255,20,147);
                    }
                    else if (colorSelected .equals("red")) {
                        Selected[0] = new Color(255,0,0);
                    }
                    else if (colorSelected .equals("white")) {
                        Selected[0] = new Color(255,255,255);
                    }
                    else if (colorSelected .equals("yellow")) {
                        Selected[0] = new Color(255,255,0);
                    }
                f.dispose();
                JLabel complete = new JLabel("You are now complete.");
                JFrame f = new JFrame("Complete");
                Container a = f.getContentPane();
                a.setBackground(Selected[0]);
                f.add(complete);
                f.setSize(500,500);
                f.setVisible(true);
                f.setIconImage(img.getImage());
            }
            });
    }
}

感谢您的帮助！

---

附言：只解决第一个错误！！！这也解决了其他问题

尝试在声明中省略数组的大小，并使用大括号而不是方括号。例如：

Colors = new String[]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};

---

数组不是用方括号初始化的，它们是，所以

---

数组初始值设定项使用

{}

而不是

[]

（对于文字部分），并且不声明数组的大小，如下所示：

Colors = new String[] {"black", "blue", "cyan", "darkGray", 
                         "gray",  "green", "lightGray", "magenta", 
                         "orange", "pink", "red", "white", "yellow"};

应该是

new String[]{"black", ...}

甚至只是

{"black", ...}  // no "new String[]"

---

您不需要指定大小；这是多余的，因为它只是您声明的元素数。

这一行不正确，必须用

{}

而不是

[]

new String[12]["black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"];

应该是

new String[]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};

您必须将JSrollPane添加到框架中，而不是添加到JList中

JScrollPane listScroller = new JScrollPane(colors);
f.add(listScroller);

您还必须将

JLabel

添加到JFrame的contentPane中

JLabel question1 = new JLabel("What would you like the background color to be?");
f.add(question1);

正如@MadProgrammer经常建议的那样，我更喜欢将JPanel而不是JFrame添加到容器中

new String[12] here is of Array is 12 but there are 13 elements in your array. 

也不需要

 Colors = new String[12]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};

只用

 Colors = new String[]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};

---

“谢谢，PrivateName”不包括SIG。在问题中，它们是噪音。这是真的，这也不是问题，12不应该在那里，13或其他：）这是这里的问题，它仍然没有编译，但编译器给我的是奇怪的。它是：'注意：Setup.java使用未经检查或不安全的操作。注意：使用-Xlint重新编译：未选中以获取详细信息。请帮忙！谢谢这意味着该类中的某些内容导致抛出编译器警告。通常，一个好的IDE将能够捕获这些内容并告诉您它们是什么。现在，您可以尝试在类声明的顶部添加@抑制器警告（“未选中”）。它确实编译，但它只是在编译时说。@ PrimeAtNeNATE不理解XD考虑接受答案。

 Colors = new String[12]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};

 Colors = new String[]{"black", "blue", "cyan", "darkGray", "gray", "green", "lightGray", "magenta", "orange", "pink", "red", "white", "yellow"};