Que- Which of these methods is not defined in both Byte and Short wrappers?
a. intValue()
b. isInfinite()
c. toString()
d. hashCode()
Answer- isInfinite()
Que- Which of these methods of Character wrapper can be used to obtain the char value contained in Character object.
a. get()
b. getVhar()
c. charValue()
d. getCharacter()
Answer- charValue()
Que- Which of the following constant are defined in Character wrapper?
a. MAX_RADIX
b. MAX_VALUE
c. TYPE
d. All of the mentioned
Answer- All of the mentioned
Que- Which of these is a super class of Character wrapper?
a. Long
b. Digits
c. Float
d. Number
Answer- Number
Que- Which of these methods is used to know whether a given Character object is part of Java's Identifiers?
a. isIdentifier()
b. isJavaIdentifier()
c. isJavaIdentifierPart()
d. none of the mentioned
Answer- isJavaIdentifierPart()
Que- Which of these coding techniques is used by method isDefined()?
a. Latin
b. ASCII
c. ANSI
d. UNICODE
Answer- UNICODE
Que- Which of these class contains all the methods present in Math class?
a. SystemMath
b. StrictMath
c. Compiler
d. ClassLoader
Answer- StrictMath
Que- Which of these method return a pseudorandom number?
a. rand()
b. random()
c. randomNumber()
d. randGenerator()
Answer- random()
Que- Which of these method returns the remainder of dividend / divisor?
a. remainder()
b. getRemainder()
c. CSIremainder()
d. IEEEremainder()
Answer- IEEEremainder()
Que- Which of these method converts radians to degrees?
a. toRadian()
b. toDegree()
c. convertRadian()
d. converDegree()
Answer- toDegree()
Que- toRadian() and toDegree() methods were added by which version of Java?
a. Java 1.0
b. Java 1.5
c. Java 2.0
d. Java 3.0
Answer- Java 2.0
Que- Which of these method returns a smallest whole number greater than or equal to variable X?
a. double ciel(double X)
b. double floor(double X)
c. double max(double X)
d. double min(double X)
Answer- double ciel(double X)
Que- Which of these classes encapsulate runtime environment?
a. Class
b. System
c. Runtime
d. ClassLoader
Answer- Runtime
Que- Which of the following exceptions is thrown by every method of Runtime class?
a. IOException
b. SystemException
c. SecurityException
d. RuntimeException
Answer- SecurityException
Que- Which of these methods returns the total number of bytes of memory available to the program?
a. getMemory()
b. TotalMemory()
c. SystemMemory()
d. getProcessMemory()
Answer- TotalMemory()
Que- Which of these Exceptions is thrown by loadClass() method of ClassLoader class?
a. IOException
b. SystemException
c. ClassFormatError
d. ClassNotFoundException
Answer- ClassNotFoundException
Que- Which of these classes encapsulate runtime state of an object?
a. Class
b. System
c. Runtime
d. Cache
Answer- Class
Que- Which of these methods returns the class of an object?
a. getClass()
b. Class()
c. WhoseClass()
d. WhoseObject()
Answer- getClass()
Que- Which of these methods return a class object given its name?
a. getClass()
b. findClass()
c. getSystemClass()
d. findSystemClass()
Answer- findSystemClass()
Que- Which of these class defines how the classes are loaded?
a. Class
b. System
c. Runtime
d. ClassLoader
Answer- ClassLoader
Que- Which of the interface contains all the methods used for handling thread related operations in Java?
a. Runnable interface
b. Math interface
c. System interface
d. ThreadHandling interface
Answer- Runnable interface
Que- Which of these class is used to make a thread?
a. String
b. System
c. Thread
d. Runnable
Answer- Thread
Que- Which of this interface is implemented by Thread class?
a. Runnable
b. Connections
c. Set
d. MapConnections
Answer- Runnable
Que- Which of these methods of a Thread class is used to suspend a thread for a period of time?
a. sleep()
b. terminate()
c. suspend()
d. stop()
Answer- sleep()
Que- Which object Java application uses to create a new process?
a. Process
b. Builder
c. ProcessBuilder
d. CreateBuilder
Answer- ProcessBuilder
Que- Which of the following is true about Java system properties?
a. Java system properties are accessible by any process
b. Java system properties are accessible by processes they are added to
c. Java system properties are retrieved by System.getenv()
d. Java system properties are set by System.setenv()
Answer- Java system properties are accessible by processes they are added to
Que- Java system properties can be set at runtime.
a.TRUE
b.FALSE
c.Nothing Can be Said
d.None of the mentioned
Answer-TRUE