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![Rupa Pandit solutions for Computer Applications [English] Class 10 ICSE chapter 5 - Library Classes - Shaalaa.com](/images/computer-applications-english-class-10-icse_6:a86debec6313407fa84cd182cd5e7e57.jpg "Rupa Pandit solutions for Computer Applications [English] Class 10 ICSE chapter 5 - Library Classes")
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Solutions for Chapter 5: Library Classes
Below listed, you can find solutions for Chapter 5 of CISCE Rupa Pandit for Computer Applications [English] Class 10 ICSE.
Rupa Pandit solutions for Computer Applications [English] Class 10 ICSE 5 Library Classes Exercises [Pages 133 - 315]
Choose the correct option.
Return data type of isDigit(char ch) is:
char
boolean
Boolean
bool
The method that converts a character to uppercase is:
toUpperCase()ToUppercase()toUpperCase(char)touppercase(char)
Corresponding wrapper class of int data type is ______
integer
INTEGER
Int
Integer
Identify the primitive.
double
Double
DOUBLE
DoublЕ
Which of the following is a valid statement?
Class carpark
class car park
class carpark
class Car-Park
Which of the following is a valid statement?
A class can have many objects
A class can have only one object
A class cannot have any object
A class can have only two objects
Which of the following is an invalid statement?
A class is a composite data type
Statement import is used for including a package
Primitives have fixed size
String is a primitive
Given:
Integer gw = new Integer (27);
The name of the object is
27
gw
GW
Gw
Given:
kd = Integer.parseInt("3");
Datatype of kd is:
Integer
String
char
int
Identify the true statement.
Integer value = new value (65);
nteger int = new Integer (65);
Int val = new int(64);
Integer val = new Integer(64);
The Scanner class method used to accept words with spаce:
next()nextLine()Next()nextString()
The keyword used to call package in the program:
Extends
Export
Import
Package
int x = (int) 32.8; is an example of ______ typecasting.
impiicit
automatic
explicit
coercion
When an object of a Wrapper class is converted to its corresponding primitive data type, it is called as ______.
Boxing
Explicit type conversion
Unboxing
Implicit type conversion
Fill in the blanks.
Member Method encompasses the ______ of a class.
A ______ can be instantiated by multiple objects.
Wrapper classes are derived from Java's standard library ______.
A ______ class is a special kind of class which wraps the value of a primitive data in an object.
A wrapper class is used to convert any given data type into an ______.
Rewrite the sentence correctly.
A class doesn't follow the conditions of becoming a composite data type.
Rewrite the sentence correctly.
A wrapper class is used to convert any given data type into a class.
Rewrite the sentence correctly.
Each object may have a different set of data and behaviour.
Rewrite the sentence correctly.
Primitives are made up of classes.
Answer the following.
Write one difference between primitive data types and composite data types.
Write two importance of wrapper class.
What is a wrapper class?
Name any two wrapper classes.
Write a difference between Autoboxing and Unboxing.
Write the output of the following.
boolean b1 = Character.isDigit('h');
System.out.println(b1);
Write the output of the following.
boolean b2 = Character.isUpperCase('m');
System.out.println(b2);
Write the output of the following.
boolean b3 = Character.isWhitespace('\n');
System.out.println(b3);
Write the output of the following.
char c1 = Character.toLowerCase('Q');
System.out.println(c1);
Write the output of the following.
char c2 = Character.toUpperCase('i');
System.out.println(c2);
Define a class to accept a 4-digit number and check whether it is an Armstrong number or not.
Note: A number is an Armstrong number if the sum of all its digits to the power of the total number of digits in that number equals the number itself.
| Example 1: | |
| Input: 154 Output: Invali |
|
| Example 2: | |
| Input: 1634 Output: Armstrong number |
Give the output of the following character class method:
Character.toUpperCase ('a')
Give the output of the following Character class
method:Character.isLetterOrDigit('W')
Solutions for 5: Library Classes
Rupa Pandit solutions for Computer Applications [English] Class 10 ICSE chapter 5 - Library Classes
Shaalaa.com has the CISCE Mathematics Computer Applications [English] Class 10 ICSE CISCE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Rupa Pandit solutions for Mathematics Computer Applications [English] Class 10 ICSE CISCE 5 (Library Classes) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Computer Applications [English] Class 10 ICSE chapter 5 Library Classes are .
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