JavaNCSS Metric Results

[ package ] [ object ] [ method ] [ explanation ]

The following document contains the results of a JavaNCSS metric analysis.
JavaNCSS web site.

Packages

[ package ] [ object ] [ method ] [ explanation ]

Packages sorted by NCSS.

PackageClassesMethodsNCSSJavadocsJavadoc linesSingle lines commentMulti lines comment
de.mud.jmd81232077134820483
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
81232077134820483

Objects

[ package ] [ object ] [ method ] [ explanation ]

TOP 30 classes containing the most NCSS.

ObjectNCSSMethodsClassesJavadocs
de.mud.jmd.JMDMainCanvas11417322
de.mud.jmd.JMD311421
de.mud.jmd.JMDBackground27916145
de.mud.jmd.BSXPolygon1031501
de.mud.jmd.JMDShortcutMenu87301
de.mud.jmd.JMDStatusCanvas43801
de.mud.jmd.JMDDrawControls37311
de.mud.jmd.Main5101

TOP 30 classes containing the most methods.

ObjectNCSSMethodsClassesJavadocs
de.mud.jmd.JMDMainCanvas11417322
de.mud.jmd.JMDBackground27916145
de.mud.jmd.BSXPolygon1031501
de.mud.jmd.JMDStatusCanvas43801
de.mud.jmd.JMD311421
de.mud.jmd.JMDDrawControls37311
de.mud.jmd.JMDShortcutMenu87301
de.mud.jmd.Main5101

Averages.

NCSS averageProgram NCSSClasses averageMethods averageJavadocs average
250.752,077.002.3815.381.63

Methods

[ package ] [ object ] [ method ] [ explanation ]

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
de.mud.jmd.JMDBackground.initComponents()16411
de.mud.jmd.JMD.ActionHandler.actionPerformed(ActionEvent)159520
de.mud.jmd.JMDMainCanvas.clickedOn(boolean,int,int)103280
de.mud.jmd.JMD.JMD()9620
de.mud.jmd.JMDMainCanvas.movedTo(int,int)70290
de.mud.jmd.JMDShortcutMenu.JMDShortcutMenu(JMD)7010
de.mud.jmd.JMDMainCanvas.paintHilite(Graphics)65300
de.mud.jmd.JMDMainCanvas.paintGuide(Graphics)5180
de.mud.jmd.JMDMainCanvas.simplify(int)42150
de.mud.jmd.JMDMainCanvas.loadFile(File,JFrame)41160
de.mud.jmd.JMDMainCanvas.mouseMoveMove(int,int)32260
de.mud.jmd.JMDMainCanvas.saveFile(JFrame)29100
de.mud.jmd.JMDBackground.jButton12ActionPerformed(java.awt.event.ActionEvent)2670
de.mud.jmd.JMDMainCanvas.paintPolygon(int,int)2360
de.mud.jmd.JMDMainCanvas.mouseDownMove(int,int)2360
de.mud.jmd.BSXPolygon.getPartDist(int,int)2270
de.mud.jmd.JMDMainCanvas.mouseDownAdjPoint(int,int)2150
de.mud.jmd.JMDMainCanvas.mouseDownAddPoint(int,int)1981
de.mud.jmd.BSXPolygon.insertPoint(int,int)1860
de.mud.jmd.JMDMainCanvas.mouseDownMirrorPolygonX(int,int)1830
de.mud.jmd.JMDMainCanvas.mouseDownMirrorPolygonY(int,int)1830
de.mud.jmd.JMDMainCanvas.cutPoly(int,int)1750
de.mud.jmd.JMDMainCanvas.paintRect(Graphics)1760
de.mud.jmd.JMDStatusCanvas.paintComponent(Graphics)1750
de.mud.jmd.JMDBackground.javax.swing.JLabel$2.paintComponent(Graphics)1670
de.mud.jmd.JMDDrawControls.JMDDrawControls(JMDMainCanvas,Color[])1620
de.mud.jmd.JMDMainCanvas.readAndConvert(FileInputStream)16160
de.mud.jmd.JMDMainCanvas.convertAndWrite(FileOutputStream,int)1640
de.mud.jmd.JMDMainCanvas.suggest(int,int)1570
de.mud.jmd.JMDMainCanvas.mirror_picture_x()1430

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
2,077.0012.823.820.03

Explanations

[ package ] [ object ] [ method ] [ explanation ]

Non Commenting Source Statements (NCSS)

Statements for JavaNCSS are not statements as specified in the Java Language Specification but include all kinds of declarations too. Roughly spoken, NCSS is approximately equivalent to counting ';' and '{' characters in Java source files.

Not counted are empty statements, empty blocks or semicolons after closing brackets. Of course, comments don't get counted too. Closing brackets also never get counted, the same applies to blocks in general.

Examples
Package declarationpackage java.lang;
Import declarationimport java.awt.*;
Class declaration
  • public class Foo {
  • public class Foo extends Bla {
Interface declarationpublic interface Able ; {
Field declaration
  • int a;
  • int a, b, c = 5, d = 6;
Method declaration
  • public void cry();
  • public void gib() throws DeadException {
Constructor declarationpublic Foo() {
Constructor invocation
  • this();
  • super();
Statement declaration
  • i = 0;
  • if (ok)
  • if (exit) {
  • if (3 == 4);
  • if (4 == 4) { ;
  • } else {
Label declarationfine :
In some cases consecutive semicolons are illegal according to the JLS but JavaNCSS still tolerates them (thought JavaNCSS is still more strict as 'javac'). Nevertheless they are never counted as two statements.Cyclomatic Complexity Number (CCN)CCN is also know as McCabe Metric. There exists a much hyped theory behind it based on graph theory, but it all comes down to simply counting 'if', 'for', 'while' statements etc. in a method. Whenever the control flow of a method splits, the "CCN counter" gets incremented by one.Each method has a minimum value of 1 per default. For each of the following Java keywords/statements this value gets incremented by one:
  • if
  • for
  • while
  • case
  • catch
Also if the control flow of a method returns abortively the CCNvalue will be incremented by one:
  • if
  • for
An ordinary return at the end of method will not be counted.Note that 'else', 'default', and 'finally' don't increment the CCN value any further. On the other hand, a simple method with a 'switch' statement and a huge block of 'case' statements can have a surprisingly high CCN value (still it has the same value when converting a 'switch' block to an equivalent sequence of 'if' statements).