SWING ActionEvent事件類

這個類定義在 java.awt.event包。按鈕被點擊時，會生成ActionEvent雙擊或列表中的項目。

類聲明

以下是聲明 java.awt.event.ActionEvent類：

public class ActionEvent extends AWTEvent

字段域

以下是java.awt.event.ActionEvent類字段域：

• static int ACTION_FIRST -- The first number in the range of ids used for action events.

• static int ACTION_LAST -- The last number in the range of ids used for action events.

• static int ACTION_PERFORMED -- This event id indicates that a meaningful action occured.

• static int ALT_MASK -- The alt modifier.

• static int CTRL_MASK -- The control modifier.

• static int META_MASK -- The meta modifier.

• static int SHIFT_MASK -- The shift modifier.

類構造函數

S.N.

構造函數 & 描述

1

ActionEvent(java.lang.Object source, int id, java.lang.String command)
Constructs an ActionEvent object.

2

ActionEvent(java.lang.Object source, int id, java.lang.String command, int modifiers)
Constructs an ActionEvent object with modifier keys.

3

ActionEvent(java.lang.Object source, int id, java.lang.String command, long when, int modifiers)
Constructs an ActionEvent object with the specified modifier keys and timestamp.

類方法

S.N.

方法 & 描述

1

java.lang.String getActionCommand()
Returns the command string associated with this action.

2

int getModifiers()
Returns the modifier keys held down during this action event.

3

long getWhen()
Returns the timestamp of when this event occurred.

4

java.lang.String paramString()
Returns a parameter string identifying this action event.

方法繼承

這個類從以下類繼承的方法：

• java.awt.AWTEvent

• java.util.EventObject

• java.lang.Object