Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Textbook Question
Chapter 2, Problem 12RE
Find three run-time errors in the following
public class HasErrors
{
public static void main(String[] args)
{
int x = 0;
int y = 0;
Scanner in = new Scanner(“System.in”);
System.out.print(“Please enter an integer: ”);
x = in.readInt();
System.out.print(“Please enter another integer: ”);
x = in.readInt();
System.out.println(“The sum is ” + x + y);
}
}
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// Displays five random numbers between
// (and including) user-specified values
import java.util.Scanner;
public class DebugSix4
{
public static void main(String[] args)
{
int high, low, count = 0;
final int NUM = 5;
Scanner input = new Scanner(System.in);
System.out.print("This application displays " + NUM +
" random numbers" +
"\nbetween the low and high values you enter" +
"\nEnter low value now... ");
low = input.nextInt()
System.out.print("Enter high value... ");
high = inputnextInt();
while(low < high)
{
System.out.println("The number you entered for a high number, " +
high + ", is not more than " + low);
System.out.print("Enter a number higher than " + low + "... ");
high = input.nextInt();
while(count < NUM)
{
double result = Math.random();
int answer = (int) (result * 10 + low);
if(answer <=…
Input
class Output
{
public static void main(String args[])
{
int x , y = 1;
x = 10;
if (x != 10 && x / 0 == 0)
System.out.println(y);
else
System.out.println(++y);
}
}
Find output
class Output{public static void main(String args[]){Integer i = new Integer(557);float x = i.floatValue();System.out.print(x);}}
What will the given code prints on the output screen.
Chapter 2 Solutions
Big Java Late Objects
Ch. 2.1 - Declare a variable suitable for holding the number...Ch. 2.1 - What is wrong with the following variable...Ch. 2.1 - Declare and initialize two variables, unitPrice...Ch. 2.1 - Prob. 4SCCh. 2.1 - Some drinks are sold in four-packs instead of...Ch. 2.1 - Prob. 6SCCh. 2.1 - Prob. 7SCCh. 2.1 - Prob. 8SCCh. 2.1 - How would you explain assignment using the parking...Ch. 2.2 - A bank account earns interest once per year. In...
Ch. 2.2 - In Java, how do you compute the side length of a...Ch. 2.2 - The volume of a sphere is given by V=43r3 If the...Ch. 2.2 - Prob. 13SCCh. 2.2 - Prob. 14SCCh. 2.3 - Write statements to prompt for and read the users...Ch. 2.3 - What is wrong with the following statement...Ch. 2.3 - Prob. 17SCCh. 2.3 - What is problematic about the following statement...Ch. 2.3 - What is the output of the following statement...Ch. 2.3 - Using the printf method, print the values of the...Ch. 2.4 - Prob. 21SCCh. 2.4 - Suppose the architect specifies a pattern with...Ch. 2.4 - A robot needs to tile a floor with alternating...Ch. 2.4 - For a particular car, repair and maintenance costs...Ch. 2.4 - The shape of a bottle is approximated by two...Ch. 2.5 - What is the length of the string "Java Program"?Ch. 2.5 - Consider this string variable. String str = "Java...Ch. 2.5 - Use string concatenation to turn the string...Ch. 2.5 - Prob. 29SCCh. 2.5 - Prob. 30SCCh. 2 - Write declarations for storing the following...Ch. 2 - What is the value of mystery after this sequence...Ch. 2 - What is wrong with the following sequence of...Ch. 2 - Write the following mathematical expressions in...Ch. 2 - Write the following Java expressions in...Ch. 2 - What are the values of the following expressions?...Ch. 2 - What are the values of the following expressions,...Ch. 2 - What are the values of the following expressions?...Ch. 2 - Assuming that a and b are variables of type int,...Ch. 2 - Suppose direction is an integer angle between 0...Ch. 2 - Find at least five compile-time errors in the...Ch. 2 - Find three run-time errors in the following...Ch. 2 - Consider the following code segment. double...Ch. 2 - Explain the differences between 2, 2.0, 2, 2, and...Ch. 2 - Explain what each of the following program...Ch. 2 - Write pseudocode for a program that reads a word...Ch. 2 - Write pseudocode for a program that reads a name...Ch. 2 - Write pseudocode for a program that computes the...Ch. 2 - Modify the pseudocode for the program in How To...Ch. 2 - Prob. 20RECh. 2 - You are cutting off a piece of pie like this,...Ch. 2 - The following pseudocode describes how to obtain...Ch. 2 - Suppose you are given a string str and two...Ch. 2 - Prob. 24RECh. 2 - For each of the following computations in Java,...Ch. 2 - Prob. 26RECh. 2 - This chapter contains a number of recommendations...Ch. 2 - Write a program that displays the dimensions of a...Ch. 2 - Write a program that computes and displays the...Ch. 2 - Write a program that reads a number and displays...Ch. 2 - Write a program that prompts the user for two...Ch. 2 - Enhance the output of Exercise E2.4 so that the...Ch. 2 - Write a program that prompts the user for a...Ch. 2 - Write a program that prompts the user for a radius...Ch. 2 - Write a program that asks the user for the lengths...Ch. 2 - Improve the program discussed in How To 2.1 to...Ch. 2 - Write a program that helps a person decide whether...Ch. 2 - Write a program that asks the user to input The...Ch. 2 - File names and extensions. Write a program that...Ch. 2 - Write a program that reads a number between 1,000...Ch. 2 - Write a program that reads a number between 1,000...Ch. 2 - Printing a grid. Write a program that prints the...Ch. 2 - Write a program that reads in an integer and...Ch. 2 - Write a program that reads two times in military...Ch. 2 - Writing large letters. A large letter H can be...Ch. 2 - Write a program that transforms numbers 1, 2, 3, ,...Ch. 2 - Write a program that prints a Christmas tree:...Ch. 2 - Easter Sunday is the first Sunday after the first...Ch. 2 - In this project, you will perform calculations...Ch. 2 - The following pseudocode describes how a bookstore...Ch. 2 - The following pseudocode describes how to turn a...Ch. 2 - The following pseudocode describes how to extract...Ch. 2 - Giving change. Implement a program that directs a...Ch. 2 - An online bank wants you to create a program that...Ch. 2 - A video club wants to reward its best members with...Ch. 2 - Consider the following circuit. Write a program...Ch. 2 - The dew point temperature Td can be calculated...Ch. 2 - The pipe clip temperature sensors shown here are...Ch. 2 - Prob. 12PPCh. 2 - Consider the following tuning circuit connected to...Ch. 2 - According to the Coulomb force law, the electric...
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