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.jbp6757624427863263
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
6757624427863263

Objects

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

TOP 30 classes containing the most NCSS.

ObjectNCSSMethodsClassesJavadocs
de.mud.jbp.ProxyFrame24213107
de.mud.jbp.ProxyConnection12112311
de.mud.jbp.ProxyModel1141919
de.mud.jbp.ProxyAddDlg112932
de.mud.jbp.ProxyWorker9717112
de.mud.jbp.Main34503

TOP 30 classes containing the most methods.

ObjectNCSSMethodsClassesJavadocs
de.mud.jbp.ProxyModel1141919
de.mud.jbp.ProxyWorker9717112
de.mud.jbp.ProxyFrame24213107
de.mud.jbp.ProxyConnection12112311
de.mud.jbp.ProxyAddDlg112932
de.mud.jbp.Main34503

Averages.

NCSS averageProgram NCSSClasses averageMethods averageJavadocs average
120.00762.003.0012.507.33

Methods

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

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
de.mud.jbp.ProxyFrame.initComponents()8810
de.mud.jbp.ProxyAddDlg.initComponents()6710
de.mud.jbp.ProxyConnection.start()3111
de.mud.jbp.ProxyWorker.run()28101
de.mud.jbp.ProxyFrame.getModel()2520
de.mud.jbp.Main.main(String[])23100
de.mud.jbp.ProxyConnection.shutdown()2371
de.mud.jbp.ProxyModel.loadProps(Properties)2361
de.mud.jbp.ProxyModel.createWorker(String,String,String)2170
de.mud.jbp.ProxyConnection.ProxyConnection(Socket,Socket)2021
de.mud.jbp.ProxyFrame.jMenuItem1ActionPerformed(ActionEvent)2061
de.mud.jbp.ProxyConnection.keyPressed(KeyEvent)1871
de.mud.jbp.ProxyModel.getValueAt(int,int)18130
de.mud.jbp.ProxyFrame.jMenuItem3ActionPerformed(ActionEvent)1650
de.mud.jbp.ProxyConnection.Thread$2.run()1340
de.mud.jbp.ProxyFrame.jMenuItem2ActionPerformed(ActionEvent)1341
de.mud.jbp.ProxyWorker.shutdown()1341
de.mud.jbp.ProxyConnection.Thread$3.run()1240
de.mud.jbp.ProxyFrame.ProxyModel$10.afterRegisterConnection(ProxyConnection)1210
de.mud.jbp.ProxyFrame.ProxyFrame(Properties)1121
de.mud.jbp.ProxyFrame.jButton1ActionPerformed(java.awt.event.ActionEvent)1130
de.mud.jbp.ProxyFrame.jMenuItem6ActionPerformed(ActionEvent)1120
de.mud.jbp.ProxyWorker.setActive(boolean)931
de.mud.jbp.ProxyModel.setValueAt(Object,int,int)820
de.mud.jbp.ProxyAddDlg.jButton1ActionPerformed(ActionEvent)710
de.mud.jbp.ProxyFrame.jButton3ActionPerformed(java.awt.event.ActionEvent)720
de.mud.jbp.ProxyWorker.createConnection(Socket,Socket)711
de.mud.jbp.ProxyFrame.jMenuItem5ActionPerformed(ActionEvent)621
de.mud.jbp.ProxyModel.getProps()621
de.mud.jbp.ProxyWorker.init()620

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
762.007.561.960.39

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).