Assume the following variables have been declared and given values as shown:
String str = "0123456789";
String sub = str.substring(3, 4);
Which is the value of sub?
A)3
B)34
C)345
D)3456

Question

Quizplus · Accepted Answer

The method substring(int beginIndex, int endIndex) of the String class extracts a substring from the original string starting at beginIndex and extending to the character at index endIndex - 1. Therefore, str.substring(3, 4) extracts the substring starting at index 3 (which is '3') and ending right before index 4, resulting in the string "3".

Assume the Following Variables Have Been Declared and Given Values