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  1. #1
    sunjavaboy is offline Member
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    Mar 2008
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    Question System.out.println


    The java application I work on has thousands of System.out.println statements. Now I have to make all these S.o.p's execute only if a condition is true and restrict executing them if the condition is false.

    I cannot put the check at all the places where S.o.p statement is written in the code. Can somebody suggest a way out where I can have one common method which I can replace it with all the S.o.p's in the application?

    Any help would be appreciated.

  2. #2
    roots's Avatar
    roots is offline Moderator
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    Jan 2008
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    System.setOut(PrintStream out)

    or AOP
    dont worry newbie, we got you covered.

  3. #3
    eljarrah is offline Member
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    Nov 2007
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    hi sunjavaboy

    You Can use Initialization Blocks

    print one if statement

    if (true)

    like that

    My Regards

  4. #4
    Bluefox815 is offline Member
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    Feb 2008
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    If you still need help, perhaps it would be easier to see your posted code, or if you like your privacy, an example.

    I would use for statements, like in the below code

    Java Code:
    /* place this code wherever is preferable, I apologize for any mistakes in my code */
    // the total number of println statements, i used the name objects for MyPrintObject
    int objects = 20;
    // all the lines you don't want to print, I chose random numbers
    int[] exceptions = {2, 5, 7, 15, 17}
    // other variables
    MyPrintObject[] p = new MyPrintObject[objects];
    boolean makeTrue = true;
    for (int i = 0; i <= objects; i++) {
    makeTrue = true;
    for (int x = 0; x <= totalExceptions; x++) {
    if (i == exception[x]) // if this object is equal to one of the exceptions, make it false
    makeTrue = false;
    if (makeTrue)
    p[i] = new MyPrintObject(true);
    p[i] = new MyPrintObject(false);
    // print objects
    for (i = 0; i <= objects; i++) {
    if (p[i].print()) // for information on the print() method, see below
    Here is an example of MyPrintObject

    Java Code:
    /* My very simple MyPrintObject class */
    public class MyPrintObject {
    private boolean print;
    public MyPrintObject() {
    print = true;
    public MyPrintObject(boolean b) {
    print = b;
    public boolean print() {
    return print;
    Last edited by Bluefox815; 03-22-2008 at 01:33 AM.

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