Java程序設(shè)計(jì) 10章_ppt.txt

1、絎?0绔寮傚父澶勭悊?瀛︿範(fàn)鐩殑錛?浜?jiǎn)瑙ｅ紓甯哥殑驽奎c(diǎn)€佸垎綾??浜?jiǎn)瑙ｅ紓甯哥殑灞倠?鎺屾彙寮傚父鎹曡幏鍜屽紓甯稿鐞??鎺屾彙鑷畾涔夊紓甯哥殑緙栧啓鍜屼嬌鐢?瀛︿範(fàn)閲嶇偣錛?寮傚父鐨勬崟鑾蜂笌澶勭悊鑷畾涔夊紓甯哥殑緙栧啓鍜屼嬌鐢?絎?0绔寮傚父澶勭悊?鏈珷鎻愯?錛?1.寮傚父姒傚康2.寮傚父澶勭悊3.鎶涘嚭寮傚父4.鑷畾涔夊紓甯?10.1.1寮傚父鐨勬蹇??寮傚父鏄湪榪愯?鏃朵唬鐮佸簭鍒椾腑鍑虹幇鐨勫紓甯告潯浠訛紝涔熷嵆寮

2、傚父鏄竴涓繍琛屾椂閿欒銆?10.1寮傚父10.1.2寮傚父鐨勫垎綾?寮傚父涓€鑸彲浠ュ垎涓哄紓甯革紙Exception錛夊拰閿欒錛圗rr錛変袱涓熀鏈被鍒€?閿欒綾昏〃紺轟弗閲嶇殑閿欒錛屼緥濡傚唴閮ㄩ敊璇拰綾葷殑閿欒錛岄敊璇殑澶勭悊鐩存帴鐢盝ava緋葷粺鑷姩澶勭悊銆?Java緙栬瘧鍣ㄨ姹侸?ava紼嬪簭蹇呴』鎹曡幏鎴栧０鏄庢墍鏈夌殑闈炶繍琛屾椂寮傚父錛屼絾瀵硅繍琛屾椂寮傚父鍙互涓嶅?鐞嗐€?10.1.3寮傚

3、父鐨勫眰嬈?寮傚父綾繪槸鍐呭祵綾籘hrowable鐨勫瓙綾匯€俆hrowable綾繪淳鐢熶簡(jiǎn)Exception錛堝紓甯革級(jí)綾誨拰Err錛堥敊璇級(jí)綾匯€侲xception綾誨張媧劇敓鍑哄緢澶氱殑瀛愮被錛岃繖浜涘瓙綾誨垎涓轟袱涓垎鏀紝涓€涓槸RuntimeException綾誨強(qiáng)鍏跺瓙綾伙紝鍙︿竴綾繪槸鐩存帴浠嶦xception綾繪淳鐢熷嚭鐨勫瓙綾?10.2寮傚父澶勭悊10.2.1寮傚父澶勭悊璇彞try鈥?catch(寮傚父綾寮傚

4、父鍙橀噺鍚??鈥?finally鈥?10.2.2寮傚父澶勭悊鏈哄埗Java紼嬪簭涓紝鍙戠敓寮傚父鏃訛紝閫氬父鎴戜滑鍙互浣跨敤涓ょ?鏂規(guī)硶鏉ュ?鐞嗐€?涓€鏄洿鎺ョ敱Java榛樿鐨勫紓甯稿?鐞嗘満鍒惰繘琛屽?鐞嗐€?浜屾槸鎴戜滑鑷繁緙栧啓trycatchfinally璇彞鍧楄繘琛屽紓甯稿?鐞嗐€?10.2.3澶氫釜catch璇彞鐢ㄤ簬澶勭悊涓€涓互涓婄殑寮傚父錛岀粨鏋勫?涓嬶細(xì)try鈥?catch(寮傚父綾誨悕e)鈥?ca

5、tch(寮傚父綾誨悕e)鈥?10.2.4finally璇彞finally鍒涘緩涓€涓唬鐮佸潡錛岃浠ｇ爜鍧楀湪trycatch鍧楁墽琛屼箣鍚庯紝trycatch鍧楀悗闈㈢殑浠ｇ爜鎵ц?涔嬪墠鎵ц?銆備笉綆℃槸鍚︽姏鍑轟竴涓紓甯革紝finally鍧楅兘浼?xì)鎵ц銆?try鈥?catch(寮傚父綾誨悕e)鈥?finally鈥?10.3鎶涘嚭寮傚父10.3.1throw璇彞throw鎬繪槸鍑虹幇鍦ㄥ嚱鏁頒綋涓紝鐢ㄦ潵鏄庣‘鍦版姏鍑轟竴

6、涓紓甯搞€傜▼搴忎細(xì)鍦╰hrow璇彞鍚庣珛鍗崇粓姝?€?throw鐨勮娉曞?涓嬶細(xì)throwthrowableInstancethrowableInstance鏄疶hrowable綾繪垨鍏跺瓙綾葷殑涓€涓疄渚嬪璞€傛墍浠ュ湪浣跨敤璇ヨ鍙ヤ箣鍓嶏紝蹇呴』鍏堝緱鍒頒竴涓猼hrowableInstance鐨勫彞鏌勶紝閫氳繃鍙傛暟浼犻€掑埌catch瀛愬彞銆?鍒涘緩涓€涓猼hrowableInstance錛屾牸寮忎負(fù)錛?寮傚父綾誨

7、悕寮傚父鍙橀噺鍚嶏紱throw寮傚父鍙橀噺鍚嶏紱鎴栬€?thrownew寮傚父綾誨悕()渚嬪錛??ArithmeticExceptionethrowe鎴栬€?thrownewArithmeticException()10.3.2throws璇彞throws鎬繪槸鍑虹幇鍦ㄥ嚱鏁板ご涓紝鐢ㄦ潵鏍囨槑璇ユ垚鍛樺嚱鏁板彲鑳芥姏鍑虹殑鍚勭?寮傚父銆傝鏄庣‘鍦版姏鍑轟竴涓猂?untimeException錛屽繀欏葷敤throws璇彞鏉ュ０鏄庡畠

8、鐨勭被鍨嬨€?渚嬪錛??publicvoidsetAge(inta)throwsCCOutOfAge璇ヨ浠ｇ爜琛ㄧず褰撴垜浠皟鐢╯?etAge鏃訛紝鍙兘浜х敓CCOutOfAge寮傚父銆傚鏋滄柟娉曞畾涔?変腑鍖呭惈throws瀛愬彞錛岃皟鐢ㄨ鏂規(guī)硶鐨凧ava璇彞灝卞繀欏誨寘鍚湪trycatch璇彞鍧椾腑錛屽惁鍒欏皢鍙戠敓緙栬瘧閿欒銆?10.4鑷畾涔夊紓甯?鑷畾涔夊紓甯哥被鐨勮娉曪細(xì)class寮傚父鍚嶇Оextend

9、sException鈥?鍦ㄨ嚜瀹氫箟寮傚父綾諱腑錛屾垜浠彲浠ョ紪鍐欐柟娉曟潵澶勭悊鐩稿叧鐨勬儏鍐碉紝涔熷彲浠ヤ笉鍐欎換浣曚唬鐮併€?10.5鏈珷灝忕粨鏈珷涓昏?浠嬬粛浜?jiǎn)Java璇█涓殑寮傚父姒傚康銆佸紓甯哥殑鍒嗙被鍙?qiáng)浣摼p葷粨鏋勩€佸紓甯稿鐞嗚鍙??ry銆乧acth銆乫inally銆乼hrow鍜宼hrows璇彞鐨勪嬌鐢?紝鏈€鍚庝粙緇嶄簡(jiǎn)鑷畾涔夊紓甯哥被浠ュ強(qiáng)鍦ㄧ▼搴忎腑浣跨敤鑷畾涔夊紓甯哥被鐨勬柟娉曞拰瀹炵幇浠ｇ爜銆傞