The following code to compare two strings is compiled, the following syntax error was displayed – incompatible types – int cannot be converted to boolean.

Identify the statement which has the error and write the correct statement. Give the output of the program segment.

void calculate()
{
String a = "KING", b = "KINGDOM";
boolean x = a.compareTo(b);
System.out.println(x);
}

The output of the statement "talent".compareTo("genius") is:

1. 11
2. –11
3. 0
4. 13

Which of the following returns a String?

1. length()
2. charAt(int)
3. replace(char, char)
4. indexOf(String)

The output of the statement "CONCENTRATION".indexOf('T') is:

1. 9
2. 7
3. 6
4. (-1)