Which one of the following expressions can be used to extract the last five characters from any string variable str?
A)str.substring(str.length() - 5, str.length())
B)str.substring(5, 5)
C)str.substring(str.length() - 4, 5)
D)str.substring(str.length() - 5, 5)

Question

Quizplus · Accepted Answer

The substring method takes two parameters - the starting index and the ending index. In this case, we want to start from the fifth character from the end, which is equivalent to the length of the string minus 5, and end at the end of the string, which is equivalent to the length of the string. Therefore, option A is correct, as it uses the correct starting and ending indices. Options B, C, and D are incorrect as they do not use the correct indices.

Which One of the Following Expressions Can Be Used to Extract