internalize utility function assertConnected(), i.e. make it a method

1 files changed, 3 insertions, 4 deletions

diff --git a/src/dk.biks.bachelorizer/dk/biks/bachelorizer/Graph.java b/src/dk.biks.bachelorizer/dk/biks/bachelorizer/Graph.java
index 5131b83..a7689f8 100644
--- a/src/dk.biks.bachelorizer/dk/biks/bachelorizer/Graph.java
+++ b/src/dk.biks.bachelorizer/dk/biks/bachelorizer/Graph.java
@@ -88,7 +88,7 @@ public final class Graph extends Storage {
 		GraphAlgorithms.readGraph(g, path);
 	}
 
-	/// utility function to check that a graph is connected
+	/// check that a graph is connected
 	///
 	/// If check fails, throw an unchecked exception,
 	/// since it occurs at runtime and is unrecoverable.
@@ -97,10 +97,9 @@ public final class Graph extends Storage {
 	/// where n is the amount of vertices,
 	/// since visitDepthFirst() recurses out-edges of all vertices.
 	///
-	/// @param g  Graph to inspect
 	/// @throws   IllegalArgumentException
 	/// https://docs.oracle.com/javase/tutorial/essential/exceptions/runtime.html
-	public static void assertConnected(final AbstractGraph g) {
+	public void assertConnected() {
 
 		// collect all vertices in the graph
 		Collection<Vertex> c = g.vertices();
@@ -294,7 +293,7 @@ public final class Graph extends Storage {
 		GraphAlgorithms.printGraph(g);
 
 		// ensure the graph is connected
-		assertConnected(g);
+		assertConnected();
 		System.out.println(
 			"\n\nGraph is connected"
 			  + " (otherwise an exception was thrown)");