Ruby uses the super keyword to call the superclass implementation of the current method.
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Something thatâ?Ts used in an expression to manipulate objects such as + (plus), - (minus), * (multiply), and / (divide). You can also use operators to do comparisons,such as with <, >, and &&.
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Thursday, September 13, 2007
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A relation schema R is in 3NF if it is in 2NF and for every FD X A either of the following is true
Ø X is a Super-key of R.
Ø A is a prime attribute of R.
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Tuesday, May 13, 2008
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A relation schema R is said to be in 4NF if for every Multivalued dependency X Y that holds over R, one of following is true
Ø X is subset or equal to (or) XY = R.
Ø X is a super key.
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Tuesday, May 13, 2008
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Use the following syntax: super.myMethod(); To call a constructor of the superclass, just call super() in the first line of the subclass's constructor, passing any required parameters.
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Tuesday, May 13, 2008
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You can use an object anywhere it's declared class or a super-class is expected. You have to cast if a sub-class is expected, e.g. if you want to assign to a sub-class object or to use a sub-class's method.
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Tuesday, May 13, 2008
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The Pentium MMX uses Super Socket 7.
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Friday, April 25, 2008
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