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int onmask = e.BUTTON1_DOWN_MASK | e.BUTTON3_DOWN_MASK;
if ((e.getModifiersEx() onmask) == onmask) {
System.out.println("ok");
}
API文檔:
getModifiersEx
public int getModifiersEx()
返回此事件的擴展修飾符掩碼。擴展修飾符表示所有模式鍵的狀態(tài),例如 ALT、CTRL、META 和事件發(fā)生后那一刻的鼠標按鈕
例如,如果用戶在按下 button 1 后又按下 button 2,然后以相同的順序釋放這兩個哪雀按鈕,則會生成以下事件跡斗序列:
MOUSE_PRESSED: BUTTON1_DOWN_MASK
MOUSE_PRESSED: BUTTON1_DOWN_MASK | BUTTON2_DOWN_MASK
MOUSE_RELEASED: BUTTON2_DOWN_MASK
MOUSE_CLICKED: BUTTON2_DOWN_MASK
MOUSE_RELEASED:
MOUSE_CLICKED:
建議不使用 == 來比較此方法的返回值,因為在以后會增加新的修飾符。例如,檢查 SHIFT 和 BUTTON1 已經(jīng)按下而 CTRL 未按下的正確方法可以通過以下代碼來演示:
int onmask = SHIFT_DOWN_MASK | BUTTON1_DOWN_MASK;
int offmask = CTRL_DOWN_MASK;
if (event.getModifiersEx() (onmask | offmask) == onmask) {
...
}
即使姿緩磨添加了新的修飾符,上述代碼仍然有效。
從以下版本開始:
1.4
import java.awt.Button;\x0d\x0aimport java.util.Set;\x0d\x0a// 每一個小方塊類\x0d\x0apublic class Diamond extends Button {\x0d\x0aprivate Diamond[] diamonds;\x0d\x0a\x0d\x0a// 該小方塊周圍的八個方向上的小方塊\x0d\x0aprivate Diamond east;\x0d\x0aprivate Diamond north;\x0d\x0aprivate Diamond northEast;\x0d\x0aprivate Diamond northWest;\x0d\x0aprivate Diamond south;\x0d\x0aprivate Diamond southEast;\x0d\x0aprivate Diamond southWest;\x0d\x0aprivate Diamond west;\x0d\x0a\x0d\x0aprivate boolean isBomb;// 是否是雷\x0d\x0aprivate boolean isChange;// 又沒滑寬有被翻過\x0d\x0aprivate int no;// 產(chǎn)源讓頌生的方塊的編號\x0d\x0a\x0d\x0a// 持有所有小方塊的引用,方便進行操作\x0d\x0apublic Diamond(Diamond[] diamonds) {\x0d\x0athis.diamonds = diamonds;\x0d\x0a}\x0d\x0a\x0d\x0a// 按鍵時方塊發(fā)生改變\x0d\x0apublic boolean change() {\x0d\x0athis.isChange = true;/雹鄭/ 說明已經(jīng)翻過了\x0d\x0aif(isBomb) {// 觸雷\x0d\x0a//this.setBackground(Color.red);\x0d\x0areturn true;\x0d\x0a} else {// 不是雷,就顯示周圍雷的數(shù)目\x0d\x0a//this.setLabel(this.getNearBombNo() + "");\x0d\x0athis.setLabel(this.getNearBombNo() + "");\x0d\x0a//if(this.getNearBombNo() == 0) {\x0d\x0a//this.moveon();\x0d\x0a//}\x0d\x0areturn false;\x0d\x0a}\x0d\x0a}\x0d\x0a\x0d\x0a// 獲得該小方塊周圍雷的數(shù)量\x0d\x0apublic int getNearBombNo() {\x0d\x0aint no = 0;\x0d\x0aif(this.northWest != null this.northWest.isBomb) no++;\x0d\x0aif(this.north != null this.north.isBomb) no++;\x0d\x0aif(this.northEast != null this.northEast.isBomb) no++;\x0d\x0aif(this.east != null this.east.isBomb) no++;\x0d\x0aif(this.southEast != null this.southEast.isBomb) no++;\x0d\x0aif(this.south != null this.south.isBomb) no++;\x0d\x0aif(this.southWest != null this.southWest.isBomb) no++;\x0d\x0aif(this.west != null this.west.isBomb) no++;\x0d\x0a\x0d\x0areturn no;\x0d\x0a}\x0d\x0a\x0d\x0a// 獲得該小方塊周圍的小方塊\x0d\x0apublic Diamond getNearDimaond(int i) {\x0d\x0aint index = -1;\x0d\x0aswitch (i) {\x0d\x0acase 1:// 1表示西北,2,表示北,以此類推\x0d\x0aindex = no - 10;\x0d\x0aif(index return null;\x0d\x0a} else {\x0d\x0areturn diamonds[index];\x0d\x0a}\x0d\x0acase 2:\x0d\x0aindex = no - 9;\x0d\x0aif(index return null;\x0d\x0a} else {\x0d\x0areturn diamonds[index];\x0d\x0a}\x0d\x0acase 3:\x0d\x0aindex = no - 8;\x0d\x0aif(index return null;\x0d\x0a} else {\x0d\x0areturn diamonds[index];\x0d\x0a}\x0d\x0acase 4:\x0d\x0aindex = no + 1;\x0d\x0aif(no == 9 || no == 18 || no == 27 || no == 36 || no == 45 || no == 54 || no == 63 || no == 72 || no == 81) {\x0d\x0areturn null;\x0d\x0a} else {\x0d\x0areturn diamonds[index];\x0d\x0a}\x0d\x0acase 5:\x0d\x0aindex = no + 10;\x0d\x0aif(index = 81 ||no == 9 || no == 18 || no == 27 || no == 36 || no == 45 || no == 54 || no == 63 || no == 72 || no == 81) {\x0d\x0areturn null;\x0d\x0a} else {\x0d\x0areturn diamonds[index];\x0d\x0a}\x0d\x0acase 6:\x0d\x0aindex = no + 9;\x0d\x0aif(index 81) {\x0d\x0areturn null;\x0d\x0a} else {\x0d\x0areturn diamonds[index];\x0d\x0a}\x0d\x0acase 7:\x0d\x0aindex = no + 8;\x0d\x0aif(index = 81 || no==1 || no == 10 || no == 19 || no == 28 || no == 37 || no == 46 || no == 55 || no == 64 || no == 73) {\x0d\x0areturn null;\x0d\x0a} else {\x0d\x0areturn diamonds[index];\x0d\x0a}\x0d\x0acase 8:\x0d\x0aindex = no - 1;\x0d\x0aif(no==1 || no==10 || no == 19 || no == 28 || no == 37 || no == 46 || no == 55 || no == 64 || no == 73) {\x0d\x0areturn null;\x0d\x0a} else {\x0d\x0areturn diamonds[index];\x0d\x0a}\x0d\x0a}\x0d\x0areturn null;\x0d\x0a}\x0d\x0a\x0d\x0a// 遞歸,set是用來裝已經(jīng)翻過的小方塊的,不然會死循環(huán),為什么用set,因為set是不重復的\x0d\x0apublic void moveon(Set set) {\x0d\x0a\x0d\x0aset.add(this);// 先把自己加上\x0d\x0aif(this.getNorthWest() != null this.getNorthWest().isBomb == false) {\x0d\x0athis.getNorthWest().change();\x0d\x0a\x0d\x0aif(this.getNorthWest().getNearBombNo() == 0) {\x0d\x0aif(set.contains(this.getNorthWest()) == false)\x0d\x0athis.getNorthWest().moveon(set);\x0d\x0a}\x0d\x0a\x0d\x0aset.add(this.getNorthWest());\x0d\x0a}\x0d\x0a\x0d\x0aif(this.getNorth() != null this.getNorth().isBomb == false) {\x0d\x0athis.getNorth().change();\x0d\x0aif(this.getNorth().getNearBombNo() == 0) {\x0d\x0aif(set.contains(this.getNorth()) == false)\x0d\x0athis.getNorth().moveon(set);\x0d\x0a}\x0d\x0a\x0d\x0aset.add(this.getNorth());\x0d\x0a} \x0d\x0a\x0d\x0aif(this.getNorthEast() != null this.getNorthEast().isBomb == false) {\x0d\x0athis.getNorthEast().change();\x0d\x0aif(this.getNorthEast().getNearBombNo() == 0) {\x0d\x0aif(set.contains(this.getNorthEast()) == false)\x0d\x0athis.getNorthEast().moveon(set);\x0d\x0a}\x0d\x0a\x0d\x0aset.add(this.getNorthEast());\x0d\x0a} \x0d\x0a\x0d\x0aif(this.getEast() != null this.getEast().isBomb == false) {\x0d\x0athis.getEast().change();\x0d\x0aif(this.getEast().getNearBombNo() == 0) {\x0d\x0aif(set.contains(this.getEast()) == false)\x0d\x0athis.getEast().moveon(set);\x0d\x0a}\x0d\x0a\x0d\x0aset.add(this.getEast());\x0d\x0a} \x0d\x0a\x0d\x0aif(this.getSouthEast() != null this.getSouthEast().isBomb == false) {\x0d\x0athis.getSouthEast().change();\x0d\x0aif(this.getSouthEast().getNearBombNo() == 0) {\x0d\x0aif(set.contains(this.getSouthEast()) == false)\x0d\x0athis.getSouthEast().moveon(set);\x0d\x0a}\x0d\x0a\x0d\x0aset.add(this.getSouthEast());\x0d\x0a} \x0d\x0a\x0d\x0aif(this.getSouth() != null this.getSouth().isBomb == false) {\x0d\x0athis.getSouth().change();\x0d\x0aif(this.getSouth().getNearBombNo() == 0) {\x0d\x0aif(set.contains(this.getSouth()) == false)\x0d\x0athis.getSouth().moveon(set);\x0d\x0a}\x0d\x0a\x0d\x0aset.add(this.getSouth());\x0d\x0a} \x0d\x0a\x0d\x0aif(this.getSouthWest() != null this.getSouthWest().isBomb == false) {\x0d\x0athis.getSouthWest().change();\x0d\x0aif(this.getSouthWest().getNearBombNo() == 0) {\x0d\x0aif(set.contains(this.getSouthWest()) == false)\x0d\x0athis.getSouthWest().moveon(set);\x0d\x0a}\x0d\x0a\x0d\x0aset.add(this.getSouthWest());\x0d\x0a} \x0d\x0a\x0d\x0aif(this.getWest() != null this.getWest().isBomb == false) {\x0d\x0athis.getWest().change();\x0d\x0aif(this.getWest().getNearBombNo() == 0) {\x0d\x0aif(set.contains(this.getWest()) == false)\x0d\x0athis.getWest().moveon(set);\x0d\x0a}\x0d\x0a\x0d\x0aset.add(this.getWest());\x0d\x0a} \x0d\x0a}\x0d\x0a\x0d\x0a/*public Diamond[] getDiamonds() {\x0d\x0areturn diamonds;\x0d\x0a}*/\x0d\x0a\x0d\x0apublic Diamond getEast() {\x0d\x0areturn east;\x0d\x0a}\x0d\x0a\x0d\x0apublic int getNo() {\x0d\x0areturn no;\x0d\x0a}\x0d\x0a\x0d\x0apublic Diamond getNorth() {\x0d\x0areturn north;\x0d\x0a}\x0d\x0a\x0d\x0apublic Diamond getNorthEast() {\x0d\x0areturn northEast;\x0d\x0a}\x0d\x0a\x0d\x0apublic Diamond getNorthWest() {\x0d\x0areturn northWest;\x0d\x0a}\x0d\x0a\x0d\x0apublic Diamond getSouth() {\x0d\x0areturn south;\x0d\x0a}\x0d\x0a\x0d\x0apublic Diamond getSouthEast() {\x0d\x0areturn southEast;\x0d\x0a}\x0d\x0a\x0d\x0apublic Diamond getSouthWest() {\x0d\x0areturn southWest;\x0d\x0a}\x0d\x0a\x0d\x0apublic Diamond getWest() {\x0d\x0areturn west;\x0d\x0a}\x0d\x0a\x0d\x0apublic boolean isBomb() {\x0d\x0areturn isBomb;\x0d\x0a}\x0d\x0a\x0d\x0apublic boolean isChange() {\x0d\x0areturn isChange;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setBomb(boolean isBomb) {\x0d\x0athis.isBomb = isBomb;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setChange(boolean isChange) {\x0d\x0athis.isChange = isChange;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setDiamonds(Diamond[] diamonds) {\x0d\x0athis.diamonds = diamonds;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setEast(Diamond east) {\x0d\x0athis.east = east;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setNo(int no) {\x0d\x0athis.no = no;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setNorth(Diamond north) {\x0d\x0athis.north = north;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setNorthEast(Diamond northEast) {\x0d\x0athis.northEast = northEast;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setNorthWest(Diamond northWest) {\x0d\x0athis.northWest = northWest;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setSouth(Diamond south) {\x0d\x0athis.south = south;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setSouthEast(Diamond southEast) {\x0d\x0athis.southEast = southEast;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setSouthWest(Diamond southWest) {\x0d\x0athis.southWest = southWest;\x0d\x0a}\x0d\x0a\x0d\x0apublic void setWest(Diamond west) {\x0d\x0athis.west = west;\x0d\x0a}\x0d\x0a\x0d\x0a}