Number of lines in a method

Hi all,
can you please tell me how to get the number of lines in each method in a java file.
class test
public void method(){
sop()...
sop()...
In that above class, the number of lines in "method" is 2.
is there any api in java which will return us the number of lines in each method in a java file?
Please suggest me..

-I was wondering about some crazy bytecode reader.javap?
-I agree it's not the best solution, but going for 100% accuracy wasn't the aim here :)Please understand that I'm not criticizing your attempt, but rather that the OP's requirements are far too vague to provide any useful advice.
-How does it not deal with loops/code blocks? (case statements maybe as I forgot ":")Example:
String method =
    "void method() {\n" +
    "    for (int i = 0; i < 1; i++) {\n" +
    "        System.out.println(this.toString());\n" +
    "    }\n" +
int expectedLineCount = 3; // possibly, based on what the OP's indicated so far...
int actualLineCount = method.split("[;{}]").length; // per your example
assert expectedLineCount != actualLineCount;~

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Java Program+To count the number of lines in a method excluding comments???

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can u plz help me out, the java program is counting the number of lines in a method excluding comments.
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Please friends its urgent
Bye
Sandy

There's no such thing as an inner method in Java. You can either write the code yourself to parse Java source, or maybe something like ANTLR can do it.

Max number of lines in method.

Hi,
Syntatically a method can span for any number of lines, but is there
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The whole point is write a method that does only one thing. The hard thing is to determine what one thing is. A method which only
does one thing can also become long, and needs to be broken down
to several small methods. A method name is a very good documentation
(unless you use random method names)I also use one of my few rules of thumb here:
rule#5059723586: if you can't describe in one sentence, using
appropriate detail, what a method does, it needs to be refactored to
at least two methods. repeat rule#5059723586 as long as applicable.
rule#5059723586B: The verbs and nouns of the 'appropriate detail'
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or other methods (see also rule# 5059723586)
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How to count number of lines inside methods() using the Doclet API

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The purpose for the doclet is to load Java source files and create stubs (which are identical Java source files but do not contain any method implementation details).
Instead, the method implementation details need to be replaced with blank lines...
public class MyDoclet {
     private static String TAB = "\t";
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               MethodDoc[] methods = clazz.methods();
               for (MethodDoc method : methods) {
                    Parameter[] parameters = method.parameters();
                    println();
                    if (!method.isPrivate()) {
                         print(TAB + method.modifiers() + " "
                                                + method.returnType().simpleTypeName() + " " + method.name());
                         print("(");
                         for (int i=0; i < parameters.length; i++) {
                              Parameter parameter = (Parameter) parameters;
                              print(parameter.type().simpleTypeName() + " " + parameter.name());
                              if (i != parameters.length - 1) {
                                   print(", ");
                         print(")");
                         println(" {");
                         println("\n");
                         println(TAB + "}");
          return true;
As one can see, I am just creating the method and placing the opening and closing curly braces (along with a new \n line escape sequence, in between).
Am not really that familiar with the Doclet API...
Question(s):
(1) What is the best way to figure out how many lines of code are inside each method and then use a for loop to insert the exact same number of blank lines inside the methods?
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Happy coding to all,
Mike

This is not possible using the Doclet API, because JavaDoc does not store any information regarding implementation detail. Although MethodDoc#position will give you the line where the method is declared, there is no way to determine where the method body starts and ends.
If you need that much information, maybe you would be better of using a tool such as Eclipse's Abstract Syntax Tree parser. AST will provide you with line numbers for each code expression, hence it is relatively easy to compute the first and last line in a method body.

Effiecient method to get number of lines in a JEditorPane

My Computer Science class has a major grade project to complete by Dec. 15. For my project I've decided to make a tabbed Java IDE with save, open, compile, run, and some font options. Due to the need to make Java use the command prompt to compile and run, it will be Windows specific.
Now, next to my JEditorPane I want to put a JPanel with a GridLayout full of JLabels that will hold the line numbers. I'm having a small problem getting the precise number of lines though. Due to the nature of JEditorPane, I can't just count the number of newline characters in the JEditorPane. I've tried to use a Scanner to go through the text and find all instances of the string "<p style=\"margin-top: 0\">" but because the JEditorPane doesn't make a new <p> tag until text is entered into a new line, this only works some of the time.
Does anyone know of a way I can effectively and efficiently find the number of lines in the JEditorPane at any given time?
Message was edited by:
TheGuy@YourWindow

Swing related questions should be posted in the Swing forum.
Normally for a text editor you would use a JTextArea for simple text or a JTextPane if you plan on doing syntax highlighting. JEditorPane is typically used to display HTML files.
If you search the Swing forum using "utextcomponent" you will find my class that has methods that might be handy for what you want.

Count the number of Lines with in a method

I am trying to write a program that will report back the number of methods/types/names and proxies as well as the number of lines of code in each method... I can not figure out how to count each methods line of code separately thanks. each method is commented by
/* PROXY proxyname type */
/* METHOD method name*/
public class Assignment3
private static BufferedReader userInput = new BufferedReader (new InputStreamReader (System.in));
     * @param args
     * @throws IOException
     * @param args
     * @throws IOException
     public static void main(String[] args) throws IOException
          System.out.print("Enter the .java file name: ");
     String input = userInput.readLine();
     while (!input.equalsIgnoreCase("stop"))
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          input = userInput.readLine();
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     int numLines = 0;
     try
                    FileReader FileIn = new FileReader(inputFile);
                    Scanner scanLines = new Scanner (FileIn);
                    String line;
                         while (scanLines.hasNext())
                              line = scanLines.nextLine();
                              if (line.startsWith("/*"))
                                   numLines--;
                              else if(!line.equals(" "))
                                   numLines++;
                         FileIn.close();
          catch(IOException IOE)
               System.out.println("\nFile Not Found!");
               return numLines;
public static int MethodLOC(String inputFile) throws IOException, FileNotFoundException
     File FileIn = new File(inputFile);
     Scanner scanLines = new Scanner (FileIn);
     String line = null;
     int methodLOC = 0;
     while(scanLines.hasNext())
          line = scanLines.nextLine();
          if(!line.contains("/*"))
               StringTokenizer st = new StringTokenizer(line, "\n");
               methodLOC = st.countTokens();
     return methodLOC;
public static String Method(String inputFile) throws IOException, FileNotFoundException
     String line = null;
     String name = null;
     String info = null;
     File FileIn = new File(inputFile);
     Scanner scanLines = new Scanner (FileIn);
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          line = scanLines.nextLine();
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          String method = st.nextToken();
          name = st.nextToken();
          info = "Name of Method: " + name;
return info;
public static String Type(String inputFile) throws IOException, FileNotFoundException
     String line = null;
     String name = null;
     String info = null;
     String count = null;
     File FileIn = new File(inputFile);
     Scanner scanLines = new Scanner (FileIn);
     while(scanLines.hasNext())
     if(line.contains("PROXY"))
          StringTokenizer st = new StringTokenizer(line, " ");
          String proxy = st.nextToken();
          String method = st.nextToken();
          name = st.nextToken();
          String type = st.nextToken();
          info = "Name of Proxy: " + name + "\n" + "Type of Proxy: " + type;
     count = info;
return count;
}

Iterate through the lines and count the opening and closing curly braces. Whenever you see an opening one, increase the counter, when you see a closing one, decrease the counter. When the counter hits 0 again, you reached the end of the method.
I assume you know how to count lines while moving through a text line by line.

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Hi, all!
The task is to display title in alv_grid like
"N records selected (X records on the screen)".
It means, N records in dataset and X records displayed after filter applyed by user.
But i can't get number of lines after filter applyed from the alv_grid.
Can anybody help me?
Thanks & regards,
Konstantin

Hi,
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Hope this helps..
Sri

How to get the number of lines of a file?

Folks:
Is there a way to get the number of lines of a text file? I don't know if there is an existing method to do that.
Thanks a lot.

HI
I found some solution
other than increment loop and all
here is the code it might helpful to u
//returns the number of lines in a file
//author : Ravindra S
//Symphony software Hyderabad
try
RandomAccessFile randFile = new RandomAccessFile(csvFile,"r");
long lastRec=randFile.length();
randFile.close();
FileReader fileRead = new FileReader(csvFile);
LineNumberReader lineRead = new LineNumberReader(fileRead);
lineRead.skip(lastRec);
countRec=lineRead.getLineNumber()-1;
fileRead.close();
lineRead.close();
catch(IOException e)

Number of lines in a file

Is there a method that returns the number of lines in a text file? I'm trying to make an array of arrays, with each inner array holding 4 strings from 4 consecutive lines from a file, and the outer array holding every one of those arrays that are possible in the file. I can't anticipate the amount of 4-line blocks im going to have tho, so i need something that returns the number of lines available and divides that by four. I'll then populate the outer array by looping that many times. If any of that made sense...

Is there a method that returns the number of lines in
a text file? I'm trying to make an array of arrays,
with each inner array holding 4 strings from 4
consecutive lines from a file, and the outer array
holding every one of those arrays that are possible
in the file. I can't anticipate the amount of 4-line
blocks im going to have tho, so i need something that
returns the number of lines available and divides
that by four. I'll then populate the outer array by
looping that many times. If any of that made sense...You would do better to use java.util.List implementations such as ArrayList and LinkedList then you don't need to know the number of lines.

Limit number of lines in a text editor

Hello.
In my program, i'm creating a text zone and i need to limit the data users will put in this zone.
To create that, i'm using the object cl_gui_textedit. I've looked in the methods of this object but i wasn't able to find one that will limit the number of lines of the text editor.
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*   Instanciation du container pour la zone de texte
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            container_name = 'TEXTEDITOR'
        EXCEPTIONS
            cntl_error = 1
            cntl_system_error = 2
            create_error = 3
            lifetime_error = 4
            lifetime_dynpro_dynpro_link = 5.
    IF sy-subrc NE 0.
*      add your handling
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      EXPORTING
        parent        = g_textedit_custom_container
        wordwrap_mode = cl_gui_textedit=>wordwrap_at_fixed_position
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I just notice there is a method SET_HEIGHT but this one is implemented in CL_GUI_CONTROL.
I tried this :
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Total number of lines of code in a class.

Dear Experts,
Given a class, I want to find out the total number of lines of code in all of its methods. Following sub-parts are derived.
1. Find out all the methods of the class
2. Find out the number of lines for each of these methods and finally add the total number.
Can you kindly let me know how I can do this? Thanks a lot !
Best Regards, Vikram

Be aware that a 2D array is an array of arrays, which don't necessarily have to be the same length. e.g.int[][] a = new int[2][];
a[0] = new int[10];
a[1] = new int[20];
/* a.length == 2
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a[1].length == 20*/

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I need to count the number of lines in a txt file,
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This is because the txt file is double spaced. readLine() returns
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Hi,
I would like to write a query on USER_SOURCE that can display the number of code lines for each procedure/function in a package.
Is it possible to write such a query? Maybe by using analytical functions?
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SQL> select text from user_source where name='PKG_TEST' and type='PACKAGE BODY';
TEXT
PACKAGE BODY PKG_TEST IS
PROCEDURE proc1 IS
BEGIN
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END proc1;
PROCEDURE proc2 IS
BEGIN
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END proc2;
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onedbguru wrote:
Hopefully some idiot manager isn't trying to use this sort of thing to base their decisions on developer productivity. If so, they ARE idiots. Number of code lines NEVER, EVER, EVER!!! translates into an efficient application. If I were paid by the line, my code would look like:
select
1
from
dual
Based on the idiocy of this method of determining "performance" I would get paid $5.00 at $1.00/line. And trust me, I saw this back in the 80's and 90's and saw similar idiotic code and had to clean up the mess. Most of it wasn't efficient code to start with let alone the number of lines generated.Or the other extreme, when the PHB firmly believed that execution efficiency was gained by reducing the number of lines of code. So instead of nicely formatted, easy to read code:
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            EXEC SQL
                 SELECT (MAX(ORDER_NUM) + 1)
                 INTO   :NEXT-NUM:IND-NULL
                 FROM   PART_ORDER
            END-EXEC.
            IF IND-NULL < 0
              MOVE 1 TO NEXT-NUM.
            EXEC SQL
                 INSERT
                 INTO    PART_ORDER
                        (ORDER_NUM,
                         ORIGIN_LOC,
                         ORDER_TYPE,
                         ORDER_STAT,
                         CREAT_TIME)
                 VALUES (:NEXT-NUM,
                         :LOC, 'R', 'O',
                         CURRENT TIMESTAMP)
               END-EXEC.
            MOVE NEXT-NUM TO MASK0.
            PERFORM HEADER-PROC THRU HEADER-EXIT.
        CREATE-ORDER-EXIT. EXIT.                                                     You got this:
       *GET NEXT ORDER NUMBER
        EXEC SQL SELECT (MAX(ORDER_NUM) + 1) INTO :NEXT-NUM:IND-NULL FROM
        PART_ORDER END-EXEC. IF IND-NULL < 0 MOVE 1 TO NEXT-NUM. EXEC SQL INSERT
        INTO PART_ORDER (ORDER_NUM, ORIGIN_LOC, ORDER_TYPE, ORDER_STAT,
        CREAT_TIME) VALUES (:NEXT-NUM, :LOC, 'R', 'O', CURRENT TIMESTAMP)
        END-EXEC. MOVE NEXT-NUM TO MASK0. PERFORM HEADER-PROC THRU HEADER-EXIT.
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Number of lines of an ABAP

Hello ,
I need a hitlist of customer programms with the most numbers of lines, or programmes with more than 5.000 lines of coding.
Is there a table ?
Which table holds the coding ?
Thanks for any answer you know.
Cheers
Simone

Hello Simone
Below you find a variation of my previous report adjusted for reading function groups:
*& Report ZUS_SDN_ABAP_SOURCE_CODE_1
*& Thread: Number of lines of an ABAP
*& <a class="jive_macro jive_macro_thread" href="" __jive_macro_name="thread" modifiedtitle="true" __default_attr="817091"></a>
REPORT zus_sdn_abap_source_code_1.
TYPE-POOLS: sedi, suni.
TABLES: tlibg.
TABLES: tfdir.
DATA: go_source       TYPE REF TO cl_wb_source,
      gs_trkey        TYPE trkey,
      gt_functab      TYPE suni_functab,
      gs_func         LIKE LINE OF gt_functab,
      gd_repid        TYPE sy-repid,
      gt_source       TYPE sedi_source,
      gt_linenumbers TYPE sedi_linenumbers,
      gd_msg          TYPE bapi_msg.
PARAMETERS:
p_fugr    TYPE tlibg-area DEFAULT 'ZUS_SDN_ALV_SCREEN'.
START-OF-SELECTION.
CALL FUNCTION 'FUNCTION_INCLUDE_INFO'
    IMPORTING
      functab                   = gt_functab
*     NAMESPACE                 =
*     PNAME                     =
    CHANGING
*     FUNCNAME                  =
      group                     = p_fugr
*     INCLUDE                   =
    EXCEPTIONS
      function_not_exists       = 1
      include_not_exists        = 2
      group_not_exists          = 3
      no_selections             = 4
      no_function_include       = 5
      OTHERS                    = 6.
IF sy-subrc NE 0.
    MESSAGE ID sy-msgid TYPE 'I' NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
    RETURN.
ENDIF.
READ TABLE gt_functab INTO gs_func INDEX 1. " just read 1st fm
CLEAR: gs_trkey.
SELECT SINGLE * FROM appl_func INTO CORRESPONDING FIELDS OF gs_trkey
    WHERE obj_name = p_fugr.
CHECK ( syst-subrc = 0 ).
** gs_trkey-devclass = 'ZUS_SDN1'.
gs_trkey-obj_type = 'FUGR'.
** gs_trkey-obj_name = p_fugr.
gs_trkey-sub_type = 'FUNC'.
gs_trkey-sub_name = gs_func-funcname.
gd_repid = gs_func-funcincl. " include of fm
CREATE OBJECT go_source
    EXPORTING
      transport_key = gs_trkey
*      source_name = 'ZUS_SDN_ABAP_SOURCE_CODE'
*      modification_mode =
*      abap_editor =
*      method_key =
CALL METHOD go_source->read_source
    EXPORTING
*      status                        = SPACE
*      toggle_enh_status             = SPACE
      source_name                   = gd_repid
*      initialize_edit_control       = ' '
*      load_from_temp_storage        = 'X'
*      load_from_temp_storage_uncond = SPACE
*      with_conversion               = 'X'
*      mode                          =
*      with_enhancements             = 'X'
*      insert_impl_enh_points        = ' '
*    IMPORTING
*      source_tab                    =
*    CHANGING
*      mod_instance                  =
    EXCEPTIONS
      cancelled                     = 1
      not_found                     = 2
      read_protected                = 3
      enhancement_locked            = 4
      OTHERS                        = 5.
IF sy-subrc NE 0.
    MESSAGE ID sy-msgid TYPE 'I' NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
    RETURN.
ENDIF.
CALL METHOD go_source->get_source_tab
*    EXPORTING
*      use_attribute = space
*      use_control   = space
    IMPORTING
      SOURCE        = gt_source.
** CALL METHOD go_source->get_linenumbers
**    IMPORTING
**      linenum = gt_linenumbers.
** DESCRIBE TABLE gt_linenumbers.
DESCRIBE TABLE gt_source.
IF ( syst-tfill > 50 ).
    CONCATENATE 'FB' gs_func-funcname
                'contains > 50 coding lines'
      INTO gd_msg SEPARATED BY space.
    MESSAGE gd_msg TYPE 'I'.
ENDIF.
END-OF-SELECTION.
Regards
Uwe

How do i detect the maximum number of lines

Situation:
I have a textfield that displays about 8 lines of text before
the content would need to be scrolled to view the remaining
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Question
Rather than having some ActionScript that is constantly
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How do i determine the maximum number of lines that may be
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Please specify the method. Thank you.

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Number of lines in a method

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