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WorksheetsOOP - Quiz
Total questions: 15
Worksheet time: 8mins
Is String a primitive data type?
Yes
No
Both
Which data type gets returned from length() method in String class?
double
String
int
number
String txt = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
What is the correct way to find the length of "txt" string?
int len = length(txt);
float len = txt.length();
int len = txt.length();
double len = length(txt);
String txt = "Hello World";
System.out.println(txt.toUpperCase());
Choose the correct output.
"HELLO WORLD"
HELLO WORLD
Hello world
Hello World
String x = "10";
String y = "20";
String z = x + y;
System.out.println(z);
Guess the output.
1020
10 20
30
"10 20"
What will be the output of below code?
String statement = "Outfit of the day";
System.out.println(statement.Substring(3,6));
it of
tfit
fit
FIT
What is the most appropriate way to check if two Strings are identical?
string1 == string2
string1.equals(string2)
string1.same(string2)
string1.equalsIgnorecase(string2)
String[] friends = {"John", "Mike", "Samantha", "Monica"};
which code is correct to print "Samantha" using array functionality?
System.out.println(friends[2]);
System.out.println(friends[3]);
System.out.println(friends["Samantha"]);
System.out.println(friends{2});
Select correct code to create an array of "double" datatype of length 5.
double arr = double[5];
double{} arr = new double{5};
double[5] arr = new double[];
double[] arr = new double[5];
int x = "quarantine".indexOf("a");
What is the value of x?
4
3
2
This code does not compile.
StringIndexOutOfBoundsException
