Library Classes

Which of the following is not an example for library class?

• System

• Strings

• Math

• Scanner

Which of the following is not an example for wrapper class?

• Integer

• String

• Double

• Character

Converting a primitive value into an object of the corresponding wrapper class is called (a)   .

Converting an object of a wrapper type to its corresponding primitive value is called (a)   .

The package that contains wrapper classes.

• java.lang

• java.util

• java.io

Name the wrapper classes of char type.

(a)  

Name the wrapper classes of boolean type

(a)  

Name a method that converts a String to a primitive integer data type.

• parseInt( )

• valueOf( )

• toString( )

State the method that converts a string to a primitive float data type.

• parseFloat( )

• parseDouble( )

• valueOf( )

• toString( )

State the method that determines if the specified character is an uppercase character.

(a)