Framejava
importjavaawtimportjavaawteve
timportjavaxswi
g72用Graphics2D画抛物线，抛物线方程的系数从图形界面输入BRauthor黎明你好publicclassParabolaFrameexte
dsJFrameimpleme
tsActio
Liste
erprivatestaticfi
allo
gserialVersio
UID1LprivateParabolaCa
vasca
vas画出抛物线的花瓣privateJTextFieldi
putA_texti
putB_texti
putC_text三个文本框，接收方程系数privateJButto
co
firm_butto
确定按钮privateJLabeldisplay_labelprivateJPa
elpa
el布局面板privatedoubleabc抛物线三个系数publicParabolaFramesuper