import java.awt.*;
import java.awt.event.*;
public class TestPane {
Frame f = new Frame("TestScrollPane");
ScrollPane sp = new ScrollPane();
TextArea ta = new TextArea("",10,50,TextArea.SCROLLBARS_NONE);
sp.add(ta);
f.add(sp);
f.setSize(200,200);
f.setVisible(true);
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);
public static void main(String[] args) {
new TestPane();
}
}
编译出错,小弟请教大哥谁知道怎么回事~~
D:\javawork\Lesson9\TestPane.java:7: <identifier> expected
sp.add(ta);
^
D:\javawork\Lesson9\TestPane.java:8: <identifier> expected
f.add(sp);
^
D:\javawork\Lesson9\TestPane.java:9: <identifier> expected
f.setSize(200,200);
^
D:\javawork\Lesson9\TestPane.java:10: <identifier> expected
f.setVisible(true);
^
D:\javawork\Lesson9\TestPane.java:11: <identifier> expected
f.addWindowListener(new WindowAdapter()
^
5 errors
import java.awt.event.*;
public class TestPane {
Frame f = new Frame("TestScrollPane");
ScrollPane sp = new ScrollPane();
TextArea ta = new TextArea("",10,50,TextArea.SCROLLBARS_NONE);
sp.add(ta);
f.add(sp);
f.setSize(200,200);
f.setVisible(true);
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);
public static void main(String[] args) {
new TestPane();
}
}
编译出错,小弟请教大哥谁知道怎么回事~~
D:\javawork\Lesson9\TestPane.java:7: <identifier> expected
sp.add(ta);
^
D:\javawork\Lesson9\TestPane.java:8: <identifier> expected
f.add(sp);
^
D:\javawork\Lesson9\TestPane.java:9: <identifier> expected
f.setSize(200,200);
^
D:\javawork\Lesson9\TestPane.java:10: <identifier> expected
f.setVisible(true);
^
D:\javawork\Lesson9\TestPane.java:11: <identifier> expected
f.addWindowListener(new WindowAdapter()
^
5 errors
解决方案 »
- 关于JAVA读取JSP文件成字符串的问题
- JAVA如何对一个链接进行下载??
- netbeans-6.0m9-full-windows.exe安裝出錯,請解決
- 为什么已删除数据表所有记录,但Hibernate查出来还是原来的记录呢?
- 一个java性能方便的小问题
- 关于页面显示目录结构的问题,急啊~~~~~~~~~
- javac dos中输入中文乱码 ,求解,谢谢
- 老大,给一下结果
- 请教JBUILDER高手!为什么用Jbuilder写EJB, datasource总是提示Driver not on classpath.
- jackson的ObjectMapper是否线程安全
- 请各位朋友来看看,帮帮小弟的忙。先表感谢!
- table问题在线等
f.add(sp);
f.setSize(200,200);
f.setVisible(true);
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);
类似的代码不能写在方法外,方法外只能定义和初始化类的属性资源!把这段代码写在构造函数里:
import java.awt.*;
import java.awt.event.*;
public class TestPane {
Frame f = new Frame("TestScrollPane");
ScrollPane sp = new ScrollPane();
TextArea ta = new TextArea("",10,50,TextArea.SCROLLBARS_NONE);
public TestPane(){
sp.add(ta);
f.add(sp);
f.setSize(200,200);
f.setVisible(true);
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);
}
public static void main(String[] args) {
new TestPane();
}
}
import java.awt.event.*;
public class TestPane {
public TestPane(){//就是少了构造函数,LZ太粗心了
Frame f = new Frame("TestScrollPane");
ScrollPane sp = new ScrollPane();
TextArea ta = new TextArea("",10,50,TextArea.SCROLLBARS_NONE);
sp.add(ta);
f.add(sp);
f.setSize(200,200);
f.setVisible(true);
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);}
public static void main(String[] args) {
new TestPane();
}
}