未知题型

Giventhefollowingcode，whichcodefragments，wheninsertedattheindicatedlocation，willsucceedinmakingtheprogramdisplayabuttonspanningthewholewindowarea？（）importjava.awt.*；publicclassQ1e65{publicstaticvoidmain（Stringargs[]）{Windowwin=newFrame（）；Buttonbut=newButton（"button"）；//insertcodefragmentherewin.setSize（200，200）；win.setVisible（true）；}}
A.win.setLayout（newBorderLayout（））；win.add（but）；
B.win.setLayout（newGridLayout（1，1））；win.add（but）；
C.win.setLayout（newBorderLayout（））；win.add（but，BorderLayout.CENTER）；
D.win.add（but）；
E.win.setLayout（newFlowLayout（））；win.add（but）；

【参考答案】

A, B, C, D

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