Java Review

which of the following is wrapper class in java

• Float

• Integer

• Double

• all of above

which one of the following is true?

• runnable interface declares the start method

• Thread.start() method is used to move a thread from a new state to the runnable state

• Thread.runnable() method is used to move a thread from new state to the runnable state

• Thread.run() method is used to move a thread from new state to the runnable state

Which one of the following statement is not true about the collection interface?

• all methods defined in set interface are also defined in collection interface

• list interface extends collection interface

• set interface extends collection interface

• all methods defined in list interface are also defined in collection interface

Which one of the following statement is not true about the collection interface?

• all methods defined in set interface are also defined in collection interface

• list interface extends collection interface

• set interface extends collection interface

• all methods defined in list interface are also defined in collection interface

which one this keywords are used to create a class in java

• class

• struct

• int

• none of the avove

Which type of data is used to enter the value (1234.5)?

• Integer
• Double 
• Char
• Void

Which type of data is used to enter the value ("Welcome")?

• Text
• Characters
• String
• Boolean

We are use Scanner Library in java for...

• Give permissions to the user
• Correcting software errors
• Allows user to read data
• Allows the user to enter data

We are use For loop ..........

• To repeat a specified number of operations.
• To repeat a unspecified number of operations.
• All answers are correct

We are use While loop ..........

• To repeat a specified number of operations.
• To repeat a unspecified number of operations.
• All answers are correct