Character Array

[kapil apshankar]

Hi,
After the declaration:
char[] c = new char[100];
what is the value of c[50]?
a) 50
b) 49
c) '\u0000'
d) '\u0020'
e) " "
f) cannot be determined
g) always null until a value is assigned
I thought the answer is 'c' as characters are initialised to '\u0000'. Am I wrong?
Because this is not the right answer and the key to answers is not provided!
Regards,
Kapil

[Paul Anilprem]

You are right. c should be the right answer.
-Paul.
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[Vinod Mehta]

Here is an example to proove you are right:
Character class have
public static int getNumericValue(char ch) which
Returns the Unicode numeric value of the character as a nonnegative integer. If the character does not have a numeric value, then -1 is returned. If the character has a numeric value that cannot be represented as a nonnegative integer (for example, a fractional value), then -2 is returned.

public class test {
char[] cMain = new char[100]; 
public static void main (String args []) {
test t = new test();
System.out.println("In Main");
System.out.println("Value of \\u0000 is " + Character.getNumericValue('\u0000'));
System.out.println("Value of cMain[50] is " + Character.getNumericValue(t.cMain[50]));
t.myMethod();
}
void myMethod() {
char[] cLocal = new char[100]; 
System.out.println("Value of cLocal[50] is " + Character.getNumericValue(cLocal[50]));
}
}

[Vinod Mehta]

O/P is
---------- Java Run ----------
In Main
Value of \u0000 is -1
Value of cMain[50] is -1
Value of cLocal[50] is -1
Normal Termination
Output completed (0 sec consumed).