Java95ŷģĿǰIT³һּԡ
Ϊʱ̫̣´˶ԶΡ
ܺȻͲһˡ
ΪҵҵߣJavaITʦDZ뾫ͨԡ
ڲ96꣬JDKŸ汾
ȫĹʦJavaѧϰΣ˵ȫͨJavaԵˣЩšҪ˵ǰ壬Ҳ̫ǫ顣
СŶļ˵̫С˼ˡ
ֻܺȻԥҪҪǡ
УʱһԱ𣬡ѧУͬѧĄ̊́ġ
ܺȻһתͷһ˧硣
װ⡣
Ǻŷ͡
졣
DzǽܺȻ
ǣ
ҽǺŵá
ŶǺܺȻ۾һ;ɣ֮ǰŵŵ˵أ˵ڸУû뵽ڼѧԺа
ǺЦҿĺӰлڵλõչˡ
ܺȻΪ⣬Ӧ
㲻ڵ̨ﵱ𣿡Ǻͺܺ棬ôѧУˣ
ҡ
ܺȻ˵ѧģߣϽס
ŵDZء
Ҫ֪һֱĽʦʵDZСĽѧܣ㲻Ҫʦͽϵûάϵˡ
ŶҹҳԺġ
ܺȻϸĿڡ
Ǻеɻ֪һ۵ҵԱѧԺʲô
̵²ԺתĿǵ̨ģҪʲô
ܺȻ͵ڵҵУܶิӵIJӦֿ⡢۵ȷĴݡȥõĶдĵ¼̫ӰЧˡ
ŶҪϢϵͳ
̵²Ŀİ
ܺȻЦЦԣֻĹҵӪЧϢݸͨ
̵²ҡҡͷһϵͳûôͬҵܻвͬҪݲͬͬơͬĹܣҪƻ
ǺʧЦܺȻϢϵͳǶԭܸأҪԽݿ⣬ҪԲͬIJſͬȨޡ
֪ܺȻǿеĹܶģ黯ķʽպJavaԣˡ
Ǻһ㶡
ĻеԾ涮Javaԣ
ڳΨһһŮͬѧ۾ò˼˵ѹģ黯ȻݲͬĿͻȥòͬܵģ顣
ܺȻЦ˼Ժ˵ģҵĸԻζϢϵͳҪƣģ黯ļܹƣͿ䣬Сijɱ¡
ôܹǺ̫սˣû˻ᡣ
һͬѧ˵ҪҶķʦʣDzʿãJavaԵоҲ
𣿡
Ǻòס
ܹǷӵijһ
¥
ⶼ⡣
ܺȻ˵ģ黯ȡͺܸˡ
൱ڰÿȻҡؼ䡢ԡҡϴּȡܡװ
ԷݿܵƾͻмߵҪ
ܺȻָָԼҰܹʦҰѿܴǼѧԺͬѧҰѹܶʵ־ˡ
㣿
Ǻ۾ЦֲЦ
мͬѧЦˣⲻ֪С˵űʡڵ̨أܲܳ㣿ͷƵġ
̵²Ժ˼ۣʵܺȻ
ԡ
պãһСBugЩ˶оһˣ
ܺȻһ£ڳԶļƻǣҲʹӦˣУҪҳĶ̬ɣ
Ǻҡͷʲô棿HotJavaӶЧʾ
ܺȻ˵ͷһ£˵Ǽ˵ǼӦáΪҳʵ̬档ʵҪԵ¼ŻҳͿԿ
Ǻסתͷһʦֵǡ
Ǵ۵Сۡ
һãȻ
ǺٺһЦԱߵͬѧڣ÷
ܺȻ˹ȥ
̡ꡢʾϻһJavaԹ淶IJο顣
Ŀǰڻûİ档
Ӣİ棬档
˭飿
ܺȻָһ¡
ǺЦ˵ҵģӻġ
ܺȻһۣ̾Ӣĵģܿ
ǺС
ܺȻָкüط̫ԣ㿴ʱҪע㡣
ܺȻҲ̫ܴ˰ɣǺܸܳСӺвŻʵܲˣдⱾǸ˹дģJava֮ԾƵģ
ܺȻ֪Java֮ղķ˹˹¡ԣԡ
Ǻǡ
̫ˣ
һʱ䣬ҾͺЦ
ܺȻֵĿǣɣ߿ĶƵģµԭȥЩ⣬δܴԡǹڲƷļֵԭ˶ʿʿģ㶼Ժ㶮ɣ
̵²һźߣܲܽBug
ܺȻЦЦ
ǺSunʾܵúúõģתϣӾͶˡ
¼ķַ̡߳
ܺȻʼ
Java߳ģ̫ˡ
ǺԱ߱Թһ̣Ͷסˡ
ΪܺȻIJ̫ˡ
ٶȼ졣
ҵˣ⡣
ܺȻָĻϵһδ롣
public class Particle extends Thread {
public void run{
whiletrue{
repaint;//ֱӵAWTͼ
try { sleep100;}
catchInterruptedException e{}}}}
ڵJavaкܶȱݺ©λJava֮Ҳδ֪㿴̣һЩ˵Bug
һ̣ܺȻԺݡ
ǿѧԺԺʿʿʦѧƴͷˡѧѧԺԺ
˶
Ժɫ˷۾ǰգʹδ롣
ܺȻЦԺִרңͱоˣ㶼ˡ
̵²ţ˵ǶԵģ
ܺȻ϶ûֱ߳ӲAWTʵϣGUIϵͳ¼ִ߳СJavaȱݡ
ʵʲô̫⡣
ʮJavaʵսһͰϸĸ˵ˡԺȫ߲ô¡
ԭŶ궼ѽȻJava֮Ūˡ
ڵƾɱ
ܺȻЦ˵ʵҲǣȫٿ߶ȱݸסˡͷдһƪķȫĻҵչĹס
а취𣿡
Ǻе䳡ͨ
ΰ
õԺʿԺһСǰѧƵġ
ܺȻ뷨ʼụ̈Ĵ롣
ҪǵRunnableӿڣEventQueueAPIinvokeLaterѻͼظϵͳ¼С
Ĺʾ
ĻϵĶ̬ӻָ˶
ɹˣ
˻
ʵңһƬ
˺
ɣ
dz̵²Ժʶ㣬ơ
ȻΧվһȦIJʿ˶ʿǣſʼҹơ
Ǻס
еӯ
Ϊʲôʱڼ˵ܺȻˡ
̫ǿ˰ɣ
ȶСĿ꣬1סskjvvx;ֻĶַskjvvx
Ϊʱ̫̣´˶ԶΡ
ܺȻͲһˡ
ΪҵҵߣJavaITʦDZ뾫ͨԡ
ڲ96꣬JDKŸ汾
ȫĹʦJavaѧϰΣ˵ȫͨJavaԵˣЩšҪ˵ǰ壬Ҳ̫ǫ顣
СŶļ˵̫С˼ˡ
ֻܺȻԥҪҪǡ
УʱһԱ𣬡ѧУͬѧĄ̊́ġ
ܺȻһתͷһ˧硣
װ⡣
Ǻŷ͡
졣
DzǽܺȻ
ǣ
ҽǺŵá
ŶǺܺȻ۾һ;ɣ֮ǰŵŵ˵أ˵ڸУû뵽ڼѧԺа
ǺЦҿĺӰлڵλõչˡ
ܺȻΪ⣬Ӧ
㲻ڵ̨ﵱ𣿡Ǻͺܺ棬ôѧУˣ
ҡ
ܺȻ˵ѧģߣϽס
ŵDZء
Ҫ֪һֱĽʦʵDZСĽѧܣ㲻Ҫʦͽϵûάϵˡ
ŶҹҳԺġ
ܺȻϸĿڡ
Ǻеɻ֪һ۵ҵԱѧԺʲô
̵²ԺתĿǵ̨ģҪʲô
ܺȻ͵ڵҵУܶิӵIJӦֿ⡢۵ȷĴݡȥõĶдĵ¼̫ӰЧˡ
ŶҪϢϵͳ
̵²Ŀİ
ܺȻЦЦԣֻĹҵӪЧϢݸͨ
̵²ҡҡͷһϵͳûôͬҵܻвͬҪݲͬͬơͬĹܣҪƻ
ǺʧЦܺȻϢϵͳǶԭܸأҪԽݿ⣬ҪԲͬIJſͬȨޡ
֪ܺȻǿеĹܶģ黯ķʽպJavaԣˡ
Ǻһ㶡
ĻеԾ涮Javaԣ
ڳΨһһŮͬѧ۾ò˼˵ѹģ黯ȻݲͬĿͻȥòͬܵģ顣
ܺȻЦ˼Ժ˵ģҵĸԻζϢϵͳҪƣģ黯ļܹƣͿ䣬Сijɱ¡
ôܹǺ̫սˣû˻ᡣ
һͬѧ˵ҪҶķʦʣDzʿãJavaԵоҲ
𣿡
Ǻòס
ܹǷӵijһ
¥
ⶼ⡣
ܺȻ˵ģ黯ȡͺܸˡ
൱ڰÿȻҡؼ䡢ԡҡϴּȡܡװ
ԷݿܵƾͻмߵҪ
ܺȻָָԼҰܹʦҰѿܴǼѧԺͬѧҰѹܶʵ־ˡ
㣿
Ǻ۾ЦֲЦ
мͬѧЦˣⲻ֪С˵űʡڵ̨أܲܳ㣿ͷƵġ
̵²Ժ˼ۣʵܺȻ
ԡ
պãһСBugЩ˶оһˣ
ܺȻһ£ڳԶļƻǣҲʹӦˣУҪҳĶ̬ɣ
Ǻҡͷʲô棿HotJavaӶЧʾ
ܺȻ˵ͷһ£˵Ǽ˵ǼӦáΪҳʵ̬档ʵҪԵ¼ŻҳͿԿ
Ǻסתͷһʦֵǡ
Ǵ۵Сۡ
һãȻ
ǺٺһЦԱߵͬѧڣ÷
ܺȻ˹ȥ
̡ꡢʾϻһJavaԹ淶IJο顣
Ŀǰڻûİ档
Ӣİ棬档
˭飿
ܺȻָһ¡
ǺЦ˵ҵģӻġ
ܺȻһۣ̾Ӣĵģܿ
ǺС
ܺȻָкüط̫ԣ㿴ʱҪע㡣
ܺȻҲ̫ܴ˰ɣǺܸܳСӺвŻʵܲˣдⱾǸ˹дģJava֮ԾƵģ
ܺȻ֪Java֮ղķ˹˹¡ԣԡ
Ǻǡ
̫ˣ
һʱ䣬ҾͺЦ
ܺȻֵĿǣɣ߿ĶƵģµԭȥЩ⣬δܴԡǹڲƷļֵԭ˶ʿʿģ㶼Ժ㶮ɣ
̵²һźߣܲܽBug
ܺȻЦЦ
ǺSunʾܵúúõģתϣӾͶˡ
¼ķַ̡߳
ܺȻʼ
Java߳ģ̫ˡ
ǺԱ߱Թһ̣Ͷסˡ
ΪܺȻIJ̫ˡ
ٶȼ졣
ҵˣ⡣
ܺȻָĻϵһδ롣
public class Particle extends Thread {
public void run{
whiletrue{
repaint;//ֱӵAWTͼ
try { sleep100;}
catchInterruptedException e{}}}}
ڵJavaкܶȱݺ©λJava֮Ҳδ֪㿴̣һЩ˵Bug
һ̣ܺȻԺݡ
ǿѧԺԺʿʿʦѧƴͷˡѧѧԺԺ
˶
Ժɫ˷۾ǰգʹδ롣
ܺȻЦԺִרңͱоˣ㶼ˡ
̵²ţ˵ǶԵģ
ܺȻ϶ûֱ߳ӲAWTʵϣGUIϵͳ¼ִ߳СJavaȱݡ
ʵʲô̫⡣
ʮJavaʵսһͰϸĸ˵ˡԺȫ߲ô¡
ԭŶ궼ѽȻJava֮Ūˡ
ڵƾɱ
ܺȻЦ˵ʵҲǣȫٿ߶ȱݸסˡͷдһƪķȫĻҵչĹס
а취𣿡
Ǻе䳡ͨ
ΰ
õԺʿԺһСǰѧƵġ
ܺȻ뷨ʼụ̈Ĵ롣
ҪǵRunnableӿڣEventQueueAPIinvokeLaterѻͼظϵͳ¼С
Ĺʾ
ĻϵĶ̬ӻָ˶
ɹˣ
˻
ʵңһƬ
˺
ɣ
dz̵²Ժʶ㣬ơ
ȻΧվһȦIJʿ˶ʿǣſʼҹơ
Ǻס
еӯ
Ϊʲôʱڼ˵ܺȻˡ
̫ǿ˰ɣ
ȶСĿ꣬1סskjvvx;ֻĶַskjvvx