Java Quiz_1

What is the process of converting a variable of one data type into another in Java?

• Type casting

• Data transformation

• Behavioral Modeling

• Type conversion

Which type of casting occurs automatically when assigning a value of a smaller data type to a variable of a larger data type?

• Explicit casting

• Implicit casting

• Type conversion

• Data transformation

When is explicit casting required in Java?

• When declaring a variable

• When performing arithmetic operations

• When converting a variable of a larger data type to a smaller data type

• When converting a variable of a smaller data type to a larger data type

What method is used to find the length of a string in Java?

• lengthOf()

• size()

• length()

• count()

Which method is used to concatenate two strings in Java?

• concat()

• combine()

• merge()

• join()

What is the escape sequence character used to insert a double quote in a string?

• \s

• \"

• \d

• \q

In Java, how can you take input from the user?

• Using the Input class

• Using the Scanner class

• Using the Console class

• Using the UserInput class

Which conditional statement in Java allows you to provide an alternative block of code to be executed if the if condition is false?

• else if

• switch

• for

• while

What keyword is used to exit the switch statement once a matching case is found?

• exit

• stop

• break

• end

What is the default case used for in a switch statement?

• To specify the code that should be executed if none of the case values match the value of the expression being evaluated

• To specify the first case that should be executed

• To specify the last case that should be executed

• To specify the case with the highest value