Certification Course (Batch-01) | Quiz-02

Scanner sc = new Scanner(System.in); here "in" is a/an-

• Reference variable of System class

• Reference variable of InputStream class

• Reference variable of Reader class

• Reference variable of Input class

scanner.next(int_value), here "int_value" we can define for -

• initial value

• input value

• base of int value

• none

Which character is used as a delimiter for scanner.nextInt() ?

• space

• null

• zero

• none

Scanner class exist in which package?

• java.lang

• java.input

• java.io

• java.util

What will be happen if we build and run this Java program?

• Compilation failed

• InputMismatchException

• NumberFormatException

• None

What will be happen if we build and run this Java program?

• Compilation failed

• InputMismatchException

• NumberFormatException

• None

what will be the output if we run this program and give input value: hello 10 20?

• Compilation failed

• Runtime exception

• hello1020

• hello30

How can we print 2 digit after floating point for float/double value in Java?

• %0.##f

• %.2f

• %0.2f

• %0.00f

// following statement is valid?

InputStream is = System.in;

• YES

• NO

Which method is use to scan line of string?

• next()

• nextStringLine()

• line()

• nextLine()