String Handling in Java

Select correct relationship between index numbers and length of a string.

• They both are assigned by user

• They both are always equal

• Last index number is one less than the length of string

• Last index number is one more than the length of string

What will be the output of following statement-

System.out.println("Jai Jagat".length());

• 8

• 7

• 9

• 2

What will be the output of following statement-

System.out.println("Jai Jagat".charAt(1));

• J

• j

• a

• Jai

Which of the following statement can be used to print last character of string "str"

• System.out.println(str.charAt(str.length()-1));

• System.out.println(str.charAt(str.length()));

Select all correct statement(s) about "String" data type of java-

• String is a class

• String is an array of characters

• String values are enclosed between " "

• We can use "+" operator with strings

Following is a statement to print first character of a string, compete it by filling the blank-

System.out.println(str.charAt(____));

Following is a statement to print last character of a string having 22 characters, compete it by filling the blank-

System.out.println(str.charAt(____));

Select any two correct statements-

• length returns total number of characters of a string

• length() is a method

• length is a property

• length() counts total number of elements of an array