Introduction to Java Programming and Data Structures: Brief Version (11th Global Edition)
11th Edition
ISBN: 9780134671710
Author: Y. Daniel Liang
Publisher: PEARSON
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Textbook Question
Chapter 17.6, Problem 17.6.6CP
What will happen when you attempt to run the following code?
import java.io.*;
public class Test {
public static void main(String[] args) throws IOException {
try ( ObjectOutputStream output =
new ObjectOutputStream(new FileOutputStream(“object.dat”)); ) {
output.writeObject(new A());
}
}
}
class A implements Serializable {
B b = new B();
}
class B {
}
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import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.Scanner;class MyException extends Exception{public MyException(String NegativeArraySizeException){System.out.println("The integer must be in between 1 and 20");}}public class arrayTwo {public static void main(String[]args){Scanner keyboard = new Scanner(System.in);System.out.println("How many integers do you have? (Max 20)");int[] num = new int[keyboard.nextInt()];if(num.length<=0 || num.length>20) {System.out.println("You must enter a number in between 1 and 20");}elsefor (int i = 0; i < num.length; i++) {System.out.println("Enter element for subscript " + i);num[i] = keyboard.nextInt();}System.out.println("Here are all of those numbers");for (int i = 0; i < num.length; i++) {System.out.println(num[i]);}}}
attempted to use this code to fix the exception when a negative number is entered by the user, but it still gives back the exception. I would like to know how to…
import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.Scanner;class MyException extends Exception{public MyException(String NegativeArraySizeException){System.out.println("The integer must be in between 1 and 20");}}public class arrayTwo {public static void main(String[]args){Scanner keyboard = new Scanner(System.in);System.out.println("How many integers do you have? (Max 20)");int[] num = new int[keyboard.nextInt()];if(num.length<=0 || num.length>20) {System.out.println("You must enter a number in between 1 and 20");}elsefor (int i = 0; i < num.length; i++) {System.out.println("Enter element for subscript " + i);num[i] = keyboard.nextInt();}System.out.println("Here are all of those numbers");for (int i = 0; i < num.length; i++) {System.out.println(num[i]);}}}
Need to figure out the code to get rid of the exception for inputting a negative as an array size.
import java.util.Scanner;import java.io.FileInputStream;import java.io.FileOutputStream;import java.text.DecimalFormat;import java.io.IOException;
public class LabProgram { public static void main(String[] args) throws IOException { Scanner scnr = new Scanner(System.in); // Initialize variables for calculating exam averages int count = 0; double sumMid1 = 0, sumMid2 = 0, sumFinal = 0;
// Initialize FileOutputStream for output FileOutputStream fos = new FileOutputStream("report.txt");
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FileInputStream fis = null; try { fis = new FileInputStream(fileName);
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Chapter 17 Solutions
Introduction to Java Programming and Data Structures: Brief Version (11th Global Edition)
Ch. 17.2 - What is a text file and what is a binary file? Can...Ch. 17.2 - How do you read or write text data in Java? What...Ch. 17.3 - Prob. 17.3.1CPCh. 17.3 - How is a Java character represented in the memory,...Ch. 17.3 - If you write the string ABC to an ASCII text file,...Ch. 17.3 - If you write the string 100 to an ASCII text file,...Ch. 17.3 - What is the encoding scheme for representing a...Ch. 17.4 - Prob. 17.4.1CPCh. 17.4 - Why should you always close streams? How do you...Ch. 17.4 - Prob. 17.4.3CP
Ch. 17.4 - Does FileInputStream/Fi1eOutputStream introduce...Ch. 17.4 - What will happen if you attempt to create an input...Ch. 17.4 - How do you append data to an existing text file...Ch. 17.4 - Prob. 17.4.7CPCh. 17.4 - What is written to a file using writeByte(91) on a...Ch. 17.4 - How do you check the end of a file in an input...Ch. 17.4 - What is wrong in the following code? Import...Ch. 17.4 - Suppose you run the following program on Windows...Ch. 17.4 - After the following program is finished, how many...Ch. 17.4 - For each of the following statements on a...Ch. 17.4 - What are the advantages of using buffered streams?...Ch. 17.5 - How does the program check if a file already...Ch. 17.5 - How does the program detect the end of the file...Ch. 17.5 - How does the program count the number of bytes...Ch. 17.6 - Prob. 17.6.1CPCh. 17.6 - Prob. 17.6.2CPCh. 17.6 - Is it true that any instance of...Ch. 17.6 - Prob. 17.6.4CPCh. 17.6 - Prob. 17.6.5CPCh. 17.6 - What will happen when you attempt to run the...Ch. 17.7 - Can RandomAccessFi1e streams read and write a data...Ch. 17.7 - Create a RandomAccessFi1e stream for the file...Ch. 17.7 - What happens if the file test.dat does not exist...Ch. 17 - (Create a text file) Write a program to create a...Ch. 17 - (Create a binary data file) Write a program to...Ch. 17 - (Sum all the integers in a binary data file)...Ch. 17 - (Convert a text file into UTF) Write a program...Ch. 17 - Prob. 17.5PECh. 17 - Prob. 17.6PECh. 17 - Prob. 17.7PECh. 17 - (Update count) Suppose that you wish to track how...Ch. 17 - (Address book) Write a program that stores,...Ch. 17 - (Split files) Suppose you want to back up a huge...Ch. 17 - (Split files GUI) Rewrite Exercise 17.10 with a...Ch. 17 - Prob. 17.12PECh. 17 - (Combine files GUI) Rewrite Exercise 17.12 with a...Ch. 17 - (Encrypt files) Encode the file by adding 5 to...Ch. 17 - (Decrypt files) Suppose a file is encrypted using...Ch. 17 - (Frequency of characters) Write a program that...Ch. 17 - (BitOutputStream) Implement a class named...Ch. 17 - (View bits) Write the following method that...Ch. 17 - (View hex) Write a program that prompts the user...Ch. 17 - (Hex editor) Write a GUI application that lets the...
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