public class ABC
{
//public int a; public int b; public int c;
int a,b,c;
public ABC()
{
a=b=20;
c=0;
}
public void show()
{
System.out.println(c);
}
public void cal()
{
c=a+b;
}
public static void main(String[] arg)
{
ABC obj=new ABC();
obj.cal();
obj.show();
}
}
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