Abstract Classes - JAVA Programming in Sinhala | RAVB

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අද මම ඔයාලට කියලා දෙන්නේ abstract methods and classes ගැන.

ඉතින් මේ පාඩමේ මොනවා හරි දෙයක් තේරුනේ නැත්තම් අනිවාර්‍යෙන් පහල තියෙන comment section එකෙන් අහන්න.
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Комментарии
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හොදට තේරුනා, බලපු පලවෙනි video එක🔥 thank you!!

srinerds
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A lot of thanks, bro !! I messed up with abstract classes and this video was really really helped me a lot. Thanks again

chamudithabpramodya
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@override annotation aka use karane apita lasi

TDagent
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me vedio series eka continue wenawada ayya?

dilanmeegodavithana
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කියන්න වචන නෑ මචන් සුපිරී java interface එකත් කරන්න🙏🙏

hirunagayashan
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what is the deference between abstrct and abstraction?

dhanukalakshan
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abstact class shape
{
abstract public int getArea();
}

class rectangle extends shape
{ int length;
int width;
public int getArea()
{


return(length*width);


}


}



public class main()
{
public static void main(String args[])
{
rectangle r1 =new rectangle();
r1.length=12;
r1.width=5;

}
}

abstract.java:1: error: class, interface, or enum expected
abstact class shape
^
abstract.java:21: error: '{' expected
public class main()
^
2 errors
me error eka enawane note pad ekak haraha thama create karanne..help me

kalpadissanayaka