Que- Which of these method can set the out stream to OutputStream?
a. setStream()
b. setosteam()
c. setOut()
d. streamtoOstream()
Answer- setOut()
Que- Which of these values are returns under the case of normal termination of a program?
a.0
b.1
c.2
d.3
Answer-0
Que- Which of these is a super class of wrappers Double and Float?
a. Long
b. Digits
c. Float
d. Number
Answer- Number
Que- Which of the following methods return the value as a double?
a. doubleValue()
b. converDouble()
c. getDouble()
d. getDoubleValue()
Answer- doubleValue()
Que- Which of these methods can be used to check whether the given value is a number or not?
a. isNaN()
b. isNumber()
c. checkNaN()
d. checkNumber()
Answer- isNaN()
Que- Which of these method of Double wrapper can be used to check whether a given value is infinite or not?
a. Infinite()
b. isInfinite()
c. checkInfinite()
d. None of the mentioned
Answer- isInfinite()
Que- Which of these exceptions is thrown by compareTo() method defined in a double wrapper?
a. IOException
b. SystemException
c. CastException
d. ClassCastException
Answer- ClassCastException
Que- Which of these packages contain classes and interfaces used for input & output operations of a program?
a. java.util
b. java.lang
c. java.io
d. all of the mentioned
Answer- java.io
Que- Which of these class is not a member class of java.io package?
a. String
b. StringReader
c. Writer
d. File
Answer- String
Que- Which of these interface is not a member of java.io package?
a. DataInput
b. ObjectInput
c. ObjectFilter
d. FileFilter
Answer- ObjectFilter
Que- Which of these class is not related to input and output stream in terms of functioning?
a. File
b. Writer
c. InputStream
d. Reader
Answer- File
Que- Which of these is specified by a File object?
a. a file in disk
b. directory path
c. directory in disk
d. none of the mentioned
Answer- directory in disk
Que- Which of these is method for testing whether the specified element is a file or a directory?
a. IsFile()
b. isFile()
c. Isfile()
d. isfile()
Answer- isFile()
Que- Which of these classes is used for input and output operation when working with bytes?
a. InputStream
b. Reader
c. Writer
d. All of the mentioned
Answer- InputStream
Que- Which of these class is used to read and write bytes in a file?
a. FileReader
b. FileWriter
c. FileInputStream
d. InputStreamReader
Answer- FileInputStream
Que- Which of these method of InputStream is used to read integer representation of next available byte input?
a. read()
b. scanf()
c. get()
d. getInteger()
Answer- read()
Que- Which of these data type is returned by every method of OutputStream?
a. int
b. float
c. byte
d. none of the mentioned
Answer- none of the mentioned
Que- Which of these is a method to clear all the data present in output buffers?
a. clear()
b. flush()
c. fflush()
d. close()
Answer- flush()
Que- Which of these method(s) is/are used for writing bytes to an outputstream?
a. put()
b. print() and write()
c. printf()
d. write() and read()
Answer- print() and write()
Que- Which of these stream contains the classes which can work on character stream?
a. InputStream
b. OutputStream
c. Character Stream
d. All of the mentioned
Answer- Character Stream
Que- Which of these class is used to read characters in a file?
a. FileReader
b. FileWriter
c. FileInputStream
d. InputStreamReader
Answer- FileReader
Que- Which of these method of FileReader class is used to read characters from a file?
a. read()
b. scanf()
c. get()
d. getInteger()
Answer- read()