我们进行Java开发的时候，需要打开窗口，但是用不到的时候就需要将窗口关闭，提高工作效率，那java如何实现关闭当前窗口?接下来我们就来给大家讲解一下java内容关闭当前窗口的方法。
使用dispose()，只是该窗体在内存中所占有的资源得到了释放，而整个程序并没有因此而退出，如果整个程序要退出，在以java.awt中的frame为控件时，需手动添加：System.exit();
而在以javax.Swing中的jFrame为控件时，一般不需要再写相应的事件，默认点击窗体上的小叉时，是隐藏，当然你可更改其参数。
java怎么关闭窗体?
1.使用JFrame的enableEvents和processWindowEvent
//Frame1.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Frame1 extends JFrame
{
public Frame1()
{
enableEvents(AWTEvent.WINDOW_EVENT_MASK);
this.setSize(new Dimension(400, 300));
this.setTitle("Frame1");
}
protected void processWindowEvent(WindowEvent e)
{
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING)
{
System.exit(0);
}
}
}2.直接实现WindowListener接口
//Frame1.java
import java.awt.*;
import java.awt.event.*;
public class Frame1 extends Frame implements WindowListener
{
public Frame1()
{
this.setSize(new Dimension(400, 300));
this.setTitle("Frame1");
this.addWindowListener(this);
}
public void windowClosing(WindowEvent windowEvent)
{
System.exit(0);
}
public void windowOpened(WindowEvent windowEvent)
{}
public void windowClosed(WindowEvent windowEvent)
{}
public void windowIconified(WindowEvent windowEvent)
{}
public void windowDeiconified(WindowEvent windowEvent)
{}
public void windowActivated(WindowEvent windowEvent)
{}
public void windowDeactivated(WindowEvent windowEvent)
{}
}3.直接继承窗体适配器WindowAdapter
//Frame1.java
import java.awt.*;
import java.awt.event.*;
public class Frame1 extends WindowAdapter
{
public Frame1()
{
Frame f = new Frame();
f.setSize(new Dimension(400, 300));
f.setTitle("Frame1");
f.addWindowListener(this);
f.setVisible(true);
}
public static void main(String[] s)
{
new Frame1();
}
public void windowClosing(WindowEvent windowEvent)
{
System.exit(0);
}
}4.间接继承窗体适配器WindowAdapter
//Frame1.java
import java.awt.*;
import java.awt.event.*;
public class Frame1 extends Frame
{
public Frame1()
{
this.setSize(new Dimension(400, 300));
this.setTitle("Frame1");
this.addWindowListener(new winAdapter());
this.setVisible(true);
}
public static void main(String[] s)
{
new Frame1();
}
}
class winAdapter extends WindowAdapter
{
public void windowClosing(WindowEvent windowEvent)
{
System.exit(0);
}
}5.间接实现WindowListener接口
//Frame1.java
import java.awt.*;
import java.awt.event.*;
public class Frame1 extends Frame
{
public Frame1()
{
this.setSize(new Dimension(400, 300));
this.setTitle("Frame1");
this.addWindowListener(new winEventHandle());
this.setVisible(true);
}
public static void main(String[] s)
{
new Frame1();
}
}
class winEventHandle implements WindowListener
{
public void windowClosing(WindowEvent windowEvent)
{
System.exit(0);
}
public void windowOpened(WindowEvent windowEvent)
{}
public void windowClosed(WindowEvent windowEvent)
{}
public void windowIconified(WindowEvent windowEvent)
{}
public void windowDeiconified(WindowEvent windowEvent)
{}
public void windowActivated(WindowEvent windowEvent)
{}
public void windowDeactivated(WindowEvent windowEvent)
{}
}6.使用Inner Class
//Frame1.java
import java.awt.*;
import java.awt.event.*;
public class Frame1
{
public Frame1()
{
Frame f = new Frame();
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
f.setSize(new Dimension(400, 300));
f.setVisible(true);
}
public static void main(String[] s)
{
new Frame1();
}
}Jframe的关闭方法：
setDefaultCloseOperation(EXIT_ON_CLOSE);
frame的关闭方法如下：
this.addWindowListener(new java.awt.event.WindowAdapter()
{
public void windowClosing(java.awt.event.WindowEvent e)
{
System.exit(0);
}
});Java关闭窗体的方法有以上六种，大家可以随便选择一种将窗体关闭就好了!最后大家如果想要了解更多java入门知识，敬请关注奇Q工具网。
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