Java Programming and Technical Programming

StringBuilder is less efficient and slower than StringBuffer. State true or false.

Read Solution (Total 1)

False. StringBuilder is not thread safe so it is much faster.
10 Months agoHelpfull: Yes(0) No(0)

Java Other Question

Consider the below statements.

Statement 1 : Matcher class interprets the pattern in a String

Statement 2 : Matcher class matches the regular expression against the text provided

Which of the following is true?

A. Statement 2 alone is correct.
B. Both Statement 1 and 2 are incorrect.
C. Statement 1 alone is correct.
D. Both Statement 1 and 2 are correct What is the output of the following program?

import java.util.regex.*;

class Test
{
public static void main(String args[])
{
Pattern p = Pattern.compile(".ech");
Matcher m = p.matcher("tech");
boolean b = m.matches();
System.out.println(b);
}
}

A. true
B. false
C. Compilation Error
D. Runtime Error