Java – 错误找不到符号
我不明白为什么我在几个地方得到“错误找不到符号”。 有人可以对这个简单的问题有所了解。
- PriceCalculator.java:18:错误:找不到符号—私有JTextFeild priceFeild1;
- PriceCalculator.java:19:错误:找不到符号—私有JTextFeild priceFeild2;
- PriceCalculator.java:41:错误:找不到符号— setDefaultCloseOpperation(JFrame.EXIT_ON_CLOSE);
-
PriceCalculator.java:44:错误:找不到符号— buildPanel();
import javax.swing.*; public class PriceCalculator extends JFrame { private JPanel panel; // References the panel private JLabel messageLabel1; // References the whole sale label private JLabel messageLabel2; // References the markup label percentage private JTextFeild priceFeild1; // References the whole sale price private JTextFeild priceFeild2; // Referencts the markup label percentage private JButton calcButton; // References the calculator button private final int WINDOW_WIDTH = 550; // References the window width private final int WINDOW_HEIGHT = 550; // Referenecs the window height /** Constructor below */ public PriceCalculator() { // Set the window title setTitle("Retail Price Calculator"); // Set the size of the window setSize(WINDOW_WIDTH, WINDOW_HEIGHT); // Set the [x] exit button to close the program for the user setDefaultCloseOpperation(JFrame.EXIT_ON_CLOSE); // Build the panel and add it to the JFrame buildPanel(); // Add the contents to the panels frame add(panel); // Display the window here setVisible(true); } /** Main Method Below */ public static void main(String[] args) { new PriceCalculator(); } }
这是因为你JTextFeild
了( JTextFeild
)。 它应该是JTextField
。
另外, setDefaultCloseOperation
而不是setDefaultCloseOpperation
你的拼写错误:
JTextFeild
而不是JTextField
和setDefaultCloseOpperation(JFrame.EXIT_ON_CLOSE);
而不是setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
你在Operation
使用了2 p
。