Discussion
Which line will cause a compilation error?
public class Sample04
{
static String label(String s)
{
return s.trim();
}
public static void main(String[] args)
{
String name = label(" ada ");
int len = name.length();
assert name;
System.out.println(name + " " + len);
}
}
Answer: D
A String is not a boolean and does not convert to one, so the assertion does not compile. Truthiness of a non-empty string exists in other languages but not in Java. The intended test is almost certainly assert name != null;, which does yield a boolean.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development