Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)

11th Edition

ISBN: 9780134670942

Author: Y. Daniel Liang

Publisher: PEARSON

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A literal in computer science is used to express a fixed value in source code. They cannot be modified. Almost all programs have these fixed values or literals.

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Textbook Question

Chapter 3, Problem 3.25PE

(Geometry: intersecting point) Two points on line 1 are given as (x1, y1) and (x2, y2) and on line 2 as (x3, y3) and (x4, y4), as shown in Figure 3.8a and b.

The intersecting point of the two lines can be found by solving the following linear equations:

( y 1 − y 2 ) x − ( x 1 − x 2 ) y = ( y 1 − y 2 ) x 1 − ( x 1 − x 2 ) y 1 ( y 3 − y 4 ) x − ( x 3 − x 4 ) y = ( y 3 − y 4 ) x 3 − ( x 3 − x 4 ) y 3

Write a program that prompts the user to enter four points and displays the intersecting point. Here are sample runs:

Chapter 3, Problem 3.25PE, (Geometry: intersecting point) Two points on line 1 are given as (x1, y1) and (x2, y2) and on line 2 , example 1

FIGURE 3.8 Two lines intersect in (a and b) and two lines are parallel in (c).

Chapter 3, Problem 3.25PE, (Geometry: intersecting point) Two points on line 1 are given as (x1, y1) and (x2, y2) and on line 2 , example 2

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Chapter 3, Problem 3.24PE

Chapter 3, Problem 3.26PE

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Chapter 3 Solutions

Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)

Ch. 3.2 - List six relational operators.Ch. 3.2 - Assuming x is 1, show the result of the following...Ch. 3.2 - Can the following conversions involving casting be...Ch. 3.3 - Write an if statement that assigns 1 to x if y is...Ch. 3.3 - Write an if statement that increases pay by 3% if...Ch. 3.3 - Prob. 3.3.3CP Ch. 3.4 - Write an if statement that increases pay by 3% if...Ch. 3.4 - What is the output of the code in (a) and (b) if...Ch. 3.5 - Prob. 3.5.1CP Ch. 3.5 - Suppose x = 2andy = 3. Show the output, if any, of...

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Solution Summary: The author explains how the program will prompt the input from the user and display the intersection points.

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