我正在编写一个简单的程序来查找电影信息，但在显示 GUI 时遇到了一些问题。 我感谢任何人能够提供的任何帮助。
package guiprojj;
import java.io.BufferedReader;
import java.io.Console;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.UnknownHostException;
import java.util.Scanner;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import guiprojj.gui;
import javax.swing.JFrame;
@SuppressWarnings("unused")
public class Test {
public static void main(String args[]) throws IOException {
BufferedReader rd;
OutputStreamWriter wr;
String movie = null;
//Scanner s = new Scanner(System.in);
//System.out.println("Enter input:");
//movie = s.nextLine();
//movie = movie.replaceAll(" ", "%20");
while (movie != null)
{
try {
URL url = new URL("http://www.imdbapi.com/?i=&t=" + movie);
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
wr = new OutputStreamWriter(conn.getOutputStream());
wr.flush();
// Get the response
rd = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line;
line = rd.readLine();
if (line != null) {
System.out.println(line);
} else {
System.out.println("Sorry! That's not a valid URL.");
}
} catch (UnknownHostException codeyellow) {
System.err.println("Caught UnknownHostException: " + codeyellow.getMessage());
}
catch (IOException e)
{
System.out.println("Caught IOException:" + e.getMessage());
}
}
}
}
和
package guiprojj;
import javax.swing.*;
public class gui {
public static void main()
{
JFrame maingui = new JFrame("Gui");
JPanel pangui = new JPanel();
JTextField movie = new JTextField(16);
maingui.add(pangui);
pangui.add(movie);
maingui.setVisible(true);
maingui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
是我的两个类(class)!
最佳答案
向 gui 的 main 方法添加一个 String 数组参数，以便应用程序具有有效的入口点
public static void main(String[] args)
关于java - JFrame 未出现，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/18832701/