Objective-wise Tests – Handling Strings and Text – 2025

Q1. Consider the following class...

class MyString extends String{
MyString(){ super(); }
}


The above code will not compile.

Select 1 option(s):

Q2. True or false?

If you use a text block for creating a String, you cannot use escape sequences.

Select 1 option(s):

Q3. Which of these statements concerning the charAt() method of the String class are true?

Select 2 option(s):

Q4. Consider following classes:

//In File Other.java
package other;
public class Other { public static String hello = "Hello"; }

//In File Test.java
package testPackage;
import other.*;
class Test{
public static void main(String[] args){
String hello = "Hello", lo = "lo";
System.out.print((testPackage.Other.hello == hello) + " "); //line 1
System.out.print((other.Other.hello == hello) + " "); //line 2
System.out.print((hello == ("Hel"+"lo")) + " "); //line 3
System.out.print((hello == ("Hel"+lo)) + " "); //line 4
System.out.println(hello == ("Hel"+lo).intern()); //line 5
}
}
class Other { static String hello = "Hello"; }
What will be the output of running class Test?

Select 1 option(s):

Q5. You want to find out whether two strings are equal or not, in terms of the actual characters within the strings. What is the best way to do this?

Select 1 option(s):

Q6. Consider the following code:

public class Logger{
private StringBuilder sb = new StringBuilder();

public void logMsg(String location, String message){
sb.append(location);
sb.append("-");
sb.append(message);
}

public void dumpLog(){
System.out.println(sb.toString());
//Empty the contents of sb here
}

}

Which of the following options will empty the contents of the StringBuilder referred to by variable sb in method dumpLog()?

Select 1 option(s):

Q7. The opening delimiter of a Java text block is:

Select 1 option(s):

Q8. Given:

String s1 = "Hello World";
String s2 = """
Hello World""";
System.out.println((s1 == s2)+" "+s1.equals(s2));

What is the result?

Select 1 option(s):