What will be the output of the following Java program?
class Output
{
public static void main(String args[])
{
char a[] = {‘a’, ‘5’, ‘A’, ‘ ‘};
System.out.print(Character.isDigit(a[0]) + ” “);
System.out.print(Character.isWhitespace(a[3]) + ” “);
System.out.print(Character.isUpperCase(a[2]));
}
}
a) true false true
b) false true true
c) true true false
d) false false false
Answer: b
Explanation: Character.isDigit(a[0]) checks for a[0], whether it is a digit or not, since a[0] i:e ‘a’ is a character false is returned. a[3] is a whitespace hence Character.isWhitespace(a[3]) returns a true. a[2] is an uppercase letter i:e ‘A’ hence Character.isUpperCase(a[2]) returns true.
Output:
false true true
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