SWT JFace 002 事件4種不同寫法

2021-08-30 20:45:02 字數 4579 閱讀 1456

一、匿名內部類寫法

import org.eclipse.swt.swt;


import org.eclipse.swt.events.selectionadapter;


import org.eclipse.swt.events.selectionevent;


import org.eclipse.swt.graphics.point;


import org.eclipse.swt.layout.gridlayout;


import org.eclipse.swt.widgets.button;


import org.eclipse.swt.widgets.display;


import org.eclipse.swt.widgets.shell;


public class helloworld 


});shell.open();


while (!shell.isdisposed()) 


display.dispose();


}}
import org.eclipse.swt.swt;


import org.eclipse.swt.events.selectionadapter;


import org.eclipse.swt.events.selectionevent;


import org.eclipse.swt.graphics.point;


import org.eclipse.swt.layout.gridlayout;


import org.eclipse.swt.widgets.button;


import org.eclipse.swt.widgets.display;


import org.eclipse.swt.widgets.shell;


public class helloworld 


});} public static void main(string args) 


display.dispose();


}}
二、命名內部類寫法

import org.eclipse.swt.swt;


import org.eclipse.swt.events.selectionadapter;


import org.eclipse.swt.events.selectionevent;


import org.eclipse.swt.graphics.point;


import org.eclipse.swt.layout.gridlayout;


import org.eclipse.swt.widgets.button;


import org.eclipse.swt.widgets.display;


import org.eclipse.swt.widgets.shell;


public class helloworld 


display.dispose(); } 


// 命名內部類實現事件


private static class buttonselectionlistener extends selectionadapter 


}}
import org.eclipse.swt.swt;


import org.eclipse.swt.events.selectionadapter;


import org.eclipse.swt.events.selectionevent;


import org.eclipse.swt.graphics.point;


import org.eclipse.swt.layout.gridlayout;


import org.eclipse.swt.widgets.button;


import org.eclipse.swt.widgets.display;


import org.eclipse.swt.widgets.shell;


public class helloworld 


// 命名內部類方式實現事件


private class buttonselectionlistener extends selectionadapter 


} public static void main(string args) 


display.dispose();


}}
三、外部類寫法

import org.eclipse.swt.swt;


import org.eclipse.swt.events.selectionadapter;


import org.eclipse.swt.events.selectionevent;


import org.eclipse.swt.graphics.point;


import org.eclipse.swt.layout.gridlayout;


import org.eclipse.swt.widgets.button;


import org.eclipse.swt.widgets.display;


import org.eclipse.swt.widgets.shell;


public class helloworld 


display.dispose(); }}


// 外部類實現事件


class buttonselectionlistener extends selectionadapter 


}
import org.eclipse.swt.swt;


import org.eclipse.swt.events.selectionadapter;


import org.eclipse.swt.events.selectionevent;


import org.eclipse.swt.graphics.point;


import org.eclipse.swt.layout.gridlayout;


import org.eclipse.swt.widgets.button;


import org.eclipse.swt.widgets.display;


import org.eclipse.swt.widgets.shell;


public class helloworld 


public static void main(string args) 


display.dispose(); }}


//外部類實現事件


class buttonselectionlistener extends selectionadapter 


}
四、實現監聽介面的寫法

import org.eclipse.swt.swt;


import org.eclipse.swt.events.selectionadapter;


import org.eclipse.swt.events.selectionevent;


import org.eclipse.swt.graphics.point;


import org.eclipse.swt.layout.gridlayout;


import org.eclipse.swt.widgets.button;


import org.eclipse.swt.widgets.display;


import org.eclipse.swt.widgets.shell;


public class helloworld extends selectionadapter 


display.dispose(); } 


@override


public void widgetselected(selectionevent e) 


}
import org.eclipse.swt.swt;


import org.eclipse.swt.events.selectionadapter;


import org.eclipse.swt.events.selectionevent;


import org.eclipse.swt.graphics.point;


import org.eclipse.swt.layout.gridlayout;


import org.eclipse.swt.widgets.button;


import org.eclipse.swt.widgets.display;


import org.eclipse.swt.widgets.shell;


public class helloworld extends selectionadapter 


@override


public void widgetselected(selectionevent e) 


public static void main(string args) 


display.dispose();


}}
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