how tojavaOne程序-2/所需最少时间，java程序Date/importjava. text . *；publicsclasshelloworld { publicstaticvoidmain(stringargatchlassgettime { publicfinalvidgettime(){ longstartsystem . currenttimemillis()；runcode()；longendsystem . current time millis()；系统。out . println(运行Time: (endstart) ms)；//应该是end start } publicatabstractvoidruncode()；} public classsubtimeextentsgettime {//创建一个java文件作为SubTime，java，SubTime为主类，添加为publicfoidercode(){ for(int x0；。
how tojavaOne程序-2/所需最少时间，java程序Date/importjava. text . *；publicsclasshelloworld { publicstaticvoidmain(stringargatchlassgettime { publicfinalvidgettime(){ longstartsystem . currenttimemillis()；runcode()；longendsystem . current time millis()；系统。out . println(运行Time: (endstart) ms)；//应该是end start } publicatabstractvoidruncode()；} public classsubtimeextentsgettime {//创建一个java文件作为SubTime，java，SubTime为主类，添加为publicfoidercode(){ for(int x0；。
