Absolute Java 5th Edition by Walter Savitch - Test Bank Instant Download - Complete Test Bank With Answers Sample Questions Are Posted Below Chapter 5 Defining Classes II n Multiple Choice A static method is one that can be used with a _____________. instance variable local variable global variable the class name …
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Absolute Java 5th Edition by Walter Savitch – Test Bank
Instant Download – Complete Test Bank With Answers
Sample Questions Are Posted Below
Chapter 5
Defining Classes II
import java.util.Scanner;
public class WrapperDemo
{
public static void main(String args[])
{
Scanner keyboard = new Scanner(System.in);
System.out.print(“Enter any number >> “);
String strNumber = keyboard.next();
int intNumber = Integer.parseInt(strNumber);
double dblNumber = Double.parseDouble(strNumber);
System.out.println(“The integer value of ” + strNumber + ” is: ” +
intNumber);
System.out.println(“The floating-point value of ” + strNumber + ” is: ” +
dblNumber);
}
}
public boolean isDigitOrLetter(Character c)
{
if(c.isDigit(c.charValue()) || c.isLetter(c.charValue()))
{
System.out.println(“Returning true”);
return true;
}
else
{
System.out.println(“Returning false”);
return false;
}
}
/** Class for a book with title, author, ISBN and year published.
Class invariant: A Book always has a title and author.
*/
public class Book
{
/** Instance variables */
private String title;
private String author;
private String ISBN;
private int yearPublished;
}
/** Class for a book with title, author, ISBN and year published.
Class invariant: A Book always has a title and author.
*/
public class Book
{
/** Instance variables */
private String title;
private String author;
private String ISBN;
private int yearPublished;
/** Accessor methods */
public String getTitle()
{
return title;
}
public String getAuthor()
{
return author;
}
public String getISBN()
{
return ISBN;
}
public int getYearPublished()
{
return yearPublished;
}
/** Mutator methods */
public void setISBN(String isbn)
{
ISBN = isbn;
}
public void setYearPublished(int y)
{
yearPublished = y;
}
/** Facilitator methods */
public String toString()
{
return (title + ” ” + author + ” ” + ISBN + ” ” + yearPublished);
}
public boolean equals(Book otherBook)
{
if(otherBook == null)
return false;
else
return (title.equals(otherBook.title) &&
author.equals(otherBook.author)
&& ISBN.equals(otherBook.ISBN) &&
yearPublished == otherBook.yearPublished);
}
}
public Book(String t, String a)
{
title = t;
author = a;
setISBN(null);
setYearPublished(0);
}
public Book(String t, String a, String i, int y)
{
title = t;
author = a;
setISBN(i);
setYearPublished(y);
}
public Book(Book original)
{
if(original == null)
{
System.out.println(“Fatal error”);
System.exit(0);
}
title = original.title;
author = original.author;
ISBN = original.ISBN;
yearPublished = original.yearPublished;
}
import java.util.Scanner;
public class convertToUpper
{
public static void main(String[] args)
{
//Create a scanner object for input
Scanner keyboard = new Scanner(System.in);
System.out.println(“Enter a phrase and I’ll convert it to uppercase.”);
String phrase = keyboard.nextLine();
System.out.println(phrase.toUpperCase());
}
}
import java.util.Scanner;
import java.util.StringTokenizer;
public class tokenAverager
{
public static void main(String[] args)
{
//Local variables
Scanner keyboard = new Scanner(System.in);
int sum = 0;
int count = 0;
double average = 0;
System.out.println(“Enter your grades, placing a space between each grade.”);
System.out.println(“Press enter when you are finished.”);
String grades = keyboard.nextLine();
StringTokenizer tk = new StringTokenizer(grades, ” “);
while(tk.hasMoreTokens())
{
sum += Integer.parseInt(tk.nextToken());
count++;
}
average = sum/count;
System.out.println(“The class average is ” + average);
}
}
Original price was: $30.00.$20.00Current price is: $20.00.
Original price was: $30.00.$20.00Current price is: $20.00.
Original price was: $30.00.$20.00Current price is: $20.00.
Original price was: $30.00.$20.00Current price is: $20.00.
Original price was: $30.00.$20.00Current price is: $20.00.
Original price was: $30.00.$20.00Current price is: $20.00.
