publicclassFontFrameextendsJOptionPane{privateJLabelfont_label,style_label,size_label;privateJTextFieldfont_text,style_text,size_text;privateJListfont_list,type_list,size_list;privateJScrollPanefont,style,size;privateJLabelsample;privateString[]font_style=newString[]{"常规","粗体&