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Giventhefollowingcode,writealineofcode&ens
Giventhefollowingcode,writealineofcodethat,wheninsertedattheindicatedlocation,willmaketheoverridingmethodinExtensioninvoketheoverriddenmethodinclassBaseonthecurrentobject.
classBase{
publicvoidprint(){
System.out.println("base");
}
}
classExtentionextendsBase{
publicvoidprint(){
System.out.println("extension");
//insertlineofimplementationhere
}
}
publicclassQ294d{
publicstaticvoidmain(Stringargs[]){
Extentionext=newExtention();
ext.print();
}
}
Fillinasinglelineofimplementation.（）
参考答案
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