Starting Out with Java: Early Objects, Student Value Edition (6th Edition)
6th Edition
ISBN: 9780134457918
Author: GADDIS, Tony
Publisher: PEARSON
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Chapter 8.6, Problem 8.31CP
Program Plan Intro
Tokenizing Strings:
- The tokenizing of a string denotes a process of dividing a string into its components termed as tokens.
- The “split” method of “String” class could be used to tokenize strings.
- The character that would separate tokens is termed as “delimiter”.
- The argument passed to “split” method denotes a regular expression.
- A regular expression is used to search for patterns in strings, files and other texts.
- To prevent leading or trailing whitespace characters in tokens, the string is been trimmed.
- The “trim” method of “String” class is been used for trimming purposes.
Wrapper class:
- The wrapper class is been provided by Java API for numeric data types.
- These classes contain methods that perform useful operations.
- It involves primitive numeric values.
- The static “toString” method converts to a string from a number.
- The method that accepts number as its argument.
- It returns a number’s string representation.
- The “toBinaryString”, “toHexString”, and “toOctalString” accepts integer as argument.
- It returns string representation of number converted into binary, hexadecimal and octal.
- The “MAX_VALUE” and “MIN_VALUE” stores maximum and minimum value for a specific data type.
- The “Autoboxing” denotes a java process for automatically boxing up a value inside an object.
- The “Unboxing” denotes a reverse process of boxing; it converts a wrapper class object into a primitive type.
Program Plan Intro
Tokenizing Strings:
- The tokenizing of a string denotes a process of breaking a string down into its components termed as tokens.
- The “split” method of “String” class could be used to tokenize strings.
- The character that separates tokens is termed as “delimiter”.
- The argument passed to “split” method denotes a regular expression.
- A regular expression is used to search for patterns in strings, files and other texts.
- To prevent leading or trailing whitespace characters in tokens, the string is been trimmed.
- The “trim” method of “String” class is been used for trimming purposes.
Wrapper class:
- The wrapper class is been provided by Java API for numeric data types.
- These classes contain methods that perform useful operations.
- It involves primitive numeric values.
- The static “toString” method converts to a string from a number.
- The method that accepts number as its argument.
- It returns a number’s string representation.
- The “toBinaryString”, “toHexString”, and “toOctalString” accepts integer as argument.
- It returns string representation of number converted into binary, hexadecimal and octal.
- The “MAX_VALUE” and “MIN_VALUE” stores maximum and minimum value for a specific data type.
- The “Autoboxing” denotes a java process for automatically boxing up a value inside an object.
- The “Unboxing” denotes a reverse process of boxing; it converts a wrapper class object into a primitive type.
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O16
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MacR eok
Object Oriented Programming: 213COMP, 214COMP (Feb-2022)
Assignment- I [10 marks]
Academic honesty:
O Only pdf file accepted & student ID, will be your upload file.
O Student who submit copied work will obtain a mark of zero.
O Late work or attach file by email message not allowed.
Q1: Write the signature for a method that has one parameter of type String, and does
not return a value.
Q2: Write the signature for a method that has two parameters, both of type Student,
and returns an int value.
Q3: Write the constructor's headers of the followings?
new Student (202101156, “Ahmed");
new Address(51, "jazan university","CS&IT" );
new Grade(true, 505235600, 4.5);
Q4:
a) Write a class Student that define the following information:
name, stid , age.
b) Explain a mutators (setters) and accessors(getters) methods for each
attributes(fields).
c) Add three constructors:
• with empty constructor.
one parameter constructor (name of student)
two parameters constructor (name and stid)
d) Create two…
private float c;
private void method2(double y) {
c = y;
}
in another class we created an object of the first class then within in it :
tester.method2 (10.0f);
are there any errors ? how many errors if there are any and with explanation please.
Chapter 8 Solutions
Starting Out with Java: Early Objects, Student Value Edition (6th Edition)
Ch. 8.2 - Prob. 8.1CPCh. 8.2 - Write an if statement that displays the word digit...Ch. 8.2 - Prob. 8.3CPCh. 8.2 - Write a loop that asks the user, Do you want to...Ch. 8.2 - Prob. 8.5CPCh. 8.2 - Write a loop that counts the number of uppercase...Ch. 8.3 - Prob. 8.7CPCh. 8.3 - Modify the method you wrote for Checkpoint 9.7 so...Ch. 8.3 - Look at the following declaration: String cafeName...Ch. 8.3 - Prob. 8.10CP
Ch. 8.3 - Prob. 8.11CPCh. 8.3 - Prob. 8.12CPCh. 8.3 - Prob. 8.13CPCh. 8.3 - Look at the following code: String str1 = To be,...Ch. 8.3 - Prob. 8.15CPCh. 8.3 - Assume that a program has the following...Ch. 8.4 - Prob. 8.17CPCh. 8.4 - Prob. 8.18CPCh. 8.4 - Prob. 8.19CPCh. 8.4 - Prob. 8.20CPCh. 8.4 - Prob. 8.21CPCh. 8.4 - Prob. 8.22CPCh. 8.4 - Prob. 8.23CPCh. 8.4 - Prob. 8.24CPCh. 8.5 - Prob. 8.25CPCh. 8.5 - Prob. 8.26CPCh. 8.5 - Prob. 8.27CPCh. 8.6 - Prob. 8.29CPCh. 8.6 - Prob. 8.30CPCh. 8.6 - Prob. 8.31CPCh. 8.6 - Prob. 8.32CPCh. 8 - The isDigit, isLetter, and isLetterOrDigit methods...Ch. 8 - Prob. 2MCCh. 8 - The startsWith, endsWith, and regionMatches...Ch. 8 - The indexOf and lastIndexOf methods are members of...Ch. 8 - Prob. 5MCCh. 8 - Prob. 6MCCh. 8 - Prob. 7MCCh. 8 - Prob. 8MCCh. 8 - Prob. 9MCCh. 8 - Prob. 10MCCh. 8 - To delete a specific character in a StringBuilder...Ch. 8 - Prob. 12MCCh. 8 - Prob. 13MCCh. 8 - Prob. 14MCCh. 8 - These static final variables are members of the...Ch. 8 - Prob. 16TFCh. 8 - Prob. 17TFCh. 8 - True or False: If toLowerCase methods argument is...Ch. 8 - True or False: The startsWith and endsWith methods...Ch. 8 - True or False: There are two versions of the...Ch. 8 - Prob. 21TFCh. 8 - Prob. 22TFCh. 8 - Prob. 23TFCh. 8 - Prob. 24TFCh. 8 - Prob. 25TFCh. 8 - int number = 99; String str; // Convert number to...Ch. 8 - Prob. 2FTECh. 8 - Prob. 3FTECh. 8 - Prob. 4FTECh. 8 - Prob. 5FTECh. 8 - The following if statement determines whether...Ch. 8 - Write a loop that counts the number of space...Ch. 8 - Prob. 3AWCh. 8 - Prob. 4AWCh. 8 - Prob. 5AWCh. 8 - Modify the method you wrote for Algorithm...Ch. 8 - Prob. 7AWCh. 8 - Look at the following string:...Ch. 8 - Assume that d is a double variable. Write an if...Ch. 8 - Write code that displays the contents of the int...Ch. 8 - Prob. 11AWCh. 8 - Prob. 1SACh. 8 - Prob. 2SACh. 8 - Prob. 3SACh. 8 - Prob. 4SACh. 8 - Prob. 5SACh. 8 - Prob. 1PCCh. 8 - Prob. 2PCCh. 8 - Prob. 3PCCh. 8 - Prob. 4PCCh. 8 - Prob. 5PCCh. 8 - Prob. 6PCCh. 8 - Check Writer Write a program that displays a...Ch. 8 - Prob. 8PCCh. 8 - Prob. 9PCCh. 8 - Word Counter Write a program that asks the user...Ch. 8 - Sales Analysis If you have downloaded the books...Ch. 8 - Prob. 12PCCh. 8 - Alphabetic Telephone Number Translator Many...Ch. 8 - Word Separator Write a program that accepts as...Ch. 8 - Pig Latin Write a program that reads a sentence as...Ch. 8 - Prob. 16PCCh. 8 - Lottery Statistics To play the PowerBall lottery,...Ch. 8 - Gas Prices In the student sample program files for...
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