May 2024
Intermediate to advanced
889 pages
37h 5m
English
Content preview from Java Programming by Pearson
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Inheritance in Java • 231
demo d1 = new demo();
d1 = d2;
System.out.println(d1.bx + “\t” + d1.by + “\t” +
d1.dx);
}
}
OUTPUT:
C:\JPS\ch8>javac JPS19.java
JPS19.java:28: cannot fi nd symbol
symbol : variable dx
location : class demo
System.out.println(d1.bx + “\t” + d1.by + “\t” + d1.dx);
^
1 error
Explanation: The class demo consists of two data members bx and by and class der_demo with just one
data member dx . When in the main function, d1 = d2 is written , only the inherited data members bx
and by are assigned to object d1 . The data member dx from d2 is not assigned to d1 . In effect, object d2
gets sliced. So ...
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