Introduction to Java Programming and Data Structures, Comprehensive Version, Student Value Edition (11th Edition)
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Chapter 28, Problem 28.20PE

(Display a graph) Write a program that reads a graph from a file and displays it. The first line in the file contains a number that indicates the number of vertices (n). The vertices are labeled 0,1, …, n-1. Each subsequent line, with the format u x y v1 v2 …, describes the position of u at (x, y) and edges (u, v1), (u, v2), and so on. Figure 28.24a gives an example of the file for their corresponding graph, Your program prompts the user to enter the name of the file, reads data from the file, and displays the graph on a pane using GraphView, as shown in Figure 28,24b.

Chapter 28, Problem 28.20PE, (Display a graph) Write a program that reads a graph from a file and displays it. The first line in

FIGURE 28.24 The program reads the information about the graph and displays it visually. Source: Copyright © 1995–2016 Oracle and/or its affiliates. All rights reserved. Used with permission.

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