a newcomer ask a simple question

hi ,i am a chinese ,and i just began to learn java ,my question is that:

is there a method which could check whether the GUI widget s such as button ,textfield ..get Focus ?if there is ,pleast tell me it .

now i am doing some practice which about keyEvent ,and i need to know that .

thanks very much !

[326 byte] By [starry_nighta] at [2007-10-2 18:22:17]