Java是一种高级语言，不仅吸收了C++语言的各种优点，还摒弃了C++里难以理解的多继承、指针等概念，在实际工作中，java关闭当前窗口的指令怎么操作?下面来我们就来给大家讲解一下。
第一种：用你弹出的这个JFrame对象 frame.setVisible(false); 就好了。
第二种：调用 frame.dispose() 方法，该方法是释放窗体资源，和你设定的setDefaultCloseOperation行为有关系，比如你只是关闭窗口就可以设定。frame.setDefaultCloseOperation(WindowConstants.HIDE_ON_CLOSE),那么在你调用dispose时窗口就会隐藏，具体的你可以查看jdk api看看说明就知道了。
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);
}
});这就是Java关闭窗体的六种方法，如果遇到相关问题的时候，大家可以选择其中一项进行关闭窗体就可以了!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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