public static void main(String[] args) {
String[] graphVertexes = new String[] {"A", "B", "C", "D", "E"};
boolean[][] adjacencyMatrix = makeRandomAdjacencyMatrix(graphVertexes);
printAdjacencyMatrix(graphVertexes, adjacencyMatrix);
System.out.println(
"Vertex Set with Connections based on the above connections matrix (-> = root)");
GraphImpl<String> letterGraph = makeNewGraph(graphVertexes, 2, adjacencyMatrix);
System.out.println(letterGraph);
System.out.println("The Depth First Search (DFS) elements");
Iterator<String> dfsIterator = letterGraph.depthFirstSearchIterator();
while (dfsIterator.hasNext()) {
String value = dfsIterator.next();
if (dfsIterator.hasNext()) {
System.out.print(value + " -> ");
} else {
System.out.print(value);
}
}
System.out.println("");
System.out.println("The Breadth First Search (BFS) elements");
Iterator<String> bfsIterator = letterGraph.breadthFirstSearchIterator();
while (bfsIterator.hasNext()) {
String value = bfsIterator.next();
if (bfsIterator.hasNext()) {
System.out.print(value + " -> ");
} else {
System.out.print(value);
}
}
}
/**
* of the vertex values.
*
* @param vertexValues is a set of vertex values.
* @param rootIndex is the root index of the vertex values considered the root.
* @param adjacencyMatrix is the adjacency matrix.
* @return A new graph with the vertex values, a chosen root index of the list and an adjacency
* matrix of the connections.
*/
public static GraphImpl<String> makeNewGraph(
String[] vertexValues, int rootIndex, boolean[][] adjacencyMatrix) {
Preconditions.checkArgument(vertexValues != null, "The vertex values must be provided.");
Preconditions.checkArgument(rootIndex >= 0, "The root index must be greater or equals to 0.");
Preconditions.checkArgument(adjacencyMatrix != null, "The adjacency matrix must be provided.");
GraphImpl<String> newGraph = new GraphImpl<>();
newGraph.rootIndex = rootIndex;
newGraph.vertexes = new Vertex[vertexValues.length];
for (int i = 0; i < adjacencyMatrix.length; i++) {
List<String> connections = makeConnections(vertexValues, adjacencyMatrix, i);
newGraph.vertexes[i] = new Vertex<>(vertexValues[i], connections);
}
return newGraph;
}