While using the toLowerCase() method on a string containing special characters, …………… .

1. the special characters remain unaffected.
2. the special characters are converted to spaces.
3. the special characters are converted to null character.
4. the special characters are removed from the string.

The index of a string …………… .

1. ranges from 0 to the length -1 of the string
2. ranges from 0 to the length of the string
3. ranges from 1 to the length of the string
4. ranges from 1 to the length -1 of the string

The return type of the equals() method is …………… .

1. int
2. char
3. boolean
4. void

Which one of the given statements is true for the following statement? string1.compareTo(string2)

1. if string1 > string2 the result will be a negative integer i.e. < 0.
2. if string1 > string2 the result will be a positive integer i.e. > 0.
3. if string1 > string2 the result will be 0.
4. None of the above