Same chapter3 marksDifficulty: Medium
What is the this keyword and when is it needed?
Encapsulation and Class as a User-Defined Type
3 marksDifficulty: Medium
What is the default value of an instance variable of type int, double, boolean and String in Java?
Original Khojo Papers practice question — not from a past board paper.
Answer
Zero for int, 0.0 for double, false for boolean and null for String.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
A local variable, by contrast, has no default and must be assigned before it is used.
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Distinguish between an instance variable and a class variable.
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What is the output of: String s = "Examination"; System.out.println(s.length() + " " + s.substring(0, 4) + " " + s.toUpperCase().charAt(2));
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