Passing text component to methods

I have a method that reads a file and output puts it to a JTextArea. Everything is working fine but I am wondering if I can pass an object from a class above JTextArea (like TextComponent). Looking for a generic feel with whatever text based component I passed...will this make a difference with lightweight and heavyweigth components (swing vs. awt)? Or even streams for that matter? Will byte and character streams act differently?
What is the super class of all text based gui components?
What is the super class of all streams?
Yes I have read the java api doc on streams and using swing! Thanks

You have me until
Everything is working fine but I am wondering if I can pass an object from a class above JTextArea (like TextComponent).What are you asking for here?
You want to know if you can pass an object to a method? Yes.
You want to know if you can modify a class further up in JTextArea's hierarchy, so it has a method that passes an object to another method? Yes, by extending it and implementing the functionality you want.
Looking for a generic feel with whatever text based component I passed...will this make a difference with lightweight and heavyweigth components (swing vs. awt)?Not sure what you were asking for in the first place, so I'm unable to help you with this one.
Or even streams for that matter? Will byte and character streams act differently?If you're asking, "When I pass a stream through a method, will it act differently when I use it inside that method?", then I can answer no, it will not. You are passing your stream by reference.
class MyClass {
   private Object anObject;
   public MyClass() {
      anObject = new Object();
      MySecondClass secondClass = new MySecondClass(anObject);
class MySecondClass {
   private Object theSameObject;
   public MyClass(Object argument) {
      theSameObject = argument;
}In the above example, anObject was created in MyClass, and passed to the constructor of MySecondClass. The field theSameObject in MySecondClass is set to point to the Object passed into its constructor, which just happens to be the Object anObject created in MyClass. anObject was created in MyClass. theSameObject is essentially the exact same Object in that it references (points to) anObject.
If I'm wrong feel free to call me on it, java gurus.
What is the super class of all text based gui components?AWT or Swing?
If it's AWT, look up the API for an AWT text component, try TextField, and look at the class hierarchy.
If it's Swing, do the same for JTextField. You can easily do some detective work and figure out the super classes of 'text based gui components'.
What is the super class of all streams?You can do the same as above for streams as well.
Yes I have read the java api doc on streams and using swing! ThanksIf you've read the API docs on streams and Swing, then why did you ask the last two questions? Not trying to offend, it just seems kind of wierd.

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// File:          SystemInfoWindow.java.java
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//     Author:          JJB
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//     ============= === ==== ===============================================
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I am not sure I understand what problem you are having in passing output to the method. However, I'll guess:
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2. move display code from main to Display_Temperatures.
3. pass output to Display_Temperatures()
Display_Temperatures(output)If you want to do all the calculations also in Display_Temperatures:
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2. move all the calculations & display code from main to Display_Temperatures
3. pass Hourly_Temperatures to Display_Temperatures()
Display_Temperatures(Hourly_Temperatures)If you make these changes then you will encounter some compilation errors. Post them here only after you've first tried to understand and fix them.
If it is something else you want to do, then you will have to explain it better; at least I've not understood your problem.
The naming standards that almost all jave professionals follow is:
1. not to use underscore char ( _ ) in method names; so Display_Temperatures shd be DisplayTemperatures
2. var names don't have _ char within the name and begin with a lower case; so Hourly_Temperatures shd be hourlyTemperatures
It is generally a good practice to create an instance of the class in the main() method and write the process code in the instance methods instead of putting all that code in main() itself. Read the [url http://java.sun.com/docs/books/tutorial/]tutorials for this starting from the "Your First Cup of Java".

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http://download.oracle.com/javase/tutorial/networking/urls/readingWriting.html
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o numeric types
o dates
o time values
o strings
o null
Data type int value describing the data-type (see java.sql.Types)
Status state of the cell (for example, error or null)
<b> Formatted value a string representation of value</b>
You can retrieve text in this manner.
Do you want to be able to pass text as if it were a value as well?
Cheers,
Scott

Word processing within a text component

Although this is a potentially great application, I am at present prevented from using it to create a website due to the lack, as far as I can determine, of any form of processing individual text within the text components e.g. making individual words or word groups bold or italic or giving them COLORS.
I have large informatory text areas on my pages which need this sort of processing in order to avoid client eyestrain as well as my own.
Of course one can get around this to some extent by using multiple components but for long texts this quickly becomes very tedious and error prone, especially if one wants to copy from another source.
The Static Text component, which I presume is meant for this sort of text, in it's present simple form allows word wrap but no line formatting. The basic Text Area component (multiple lines) has no word wrap but does allow line formatting. However when one sets the Read Only property, it seems that any self created line formatting is duly destroyed. This is strangely not the case with the old Standard Mutliline Text Area component.
I may be missing something but if not I hope that these features may yet be incorporated.
Regards,
Dave

You can use static text to render pure HTML, just set "escape" property to false.
Note that the HTML text must be well former.
Regards.

How to create a text Component With Certain Properties

I need to create a text component with the following properties:
Has Capability to be italic, right/left aligned, have different background / foreground colors, and most importantly, the ability to have a fixed width and a height that is set by the amount of text in it (ie line wrapping expands the field vertically).
It should be a simple exercise, but I cannot seem to figure out how to do it.

Here is the correct syntax :
private static JEditorPane constructPane(String text, int normWidth, int normHeight, boolean rightAlign, boolean italic,boolean isWhite) {
          JEditorPane pane = new JEditorPane();
          pane.setEditable(false);
          pane.setContentType("text/html");
          pane.setText(
               "<html><head></head><body>"
               + (italic?"<i>":"")
               + "<table><COLGROUP><COL width=\""+normWidth+"\"><THREAD><tr><td valign=\"top\" align="+(rightAlign?"\"right\"":"\"left\"")+">"
               + text+"</td></tr></table>"
               + (italic?"</i>":"")
               + "</body></html>");
          pane.setSize(normWidth,normHeight);
          if(isWhite)
               pane.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createMatteBorder(1,0,1,0,Color.WHITE),BorderFactory.createEmptyBorder(0,1,0,1)));
               pane.setForeground(Color.WHITE);
          else {
               pane.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createMatteBorder(1,0,1,0,Color.BLACK),BorderFactory.createEmptyBorder(0,1,0,1)));
               pane.setForeground(Color.BLACK);
          return pane;
     }

Passing parameter in a method

hi i have a situation where i have to pass parameter to my method i don't what to pass the parameter define from the viewO because am not using parameter to query from the view,i just what to pass it to my procedure,my method is
                public void submit_agr(String par_id,String dref_id,String tas_id,String agr_id){
                    ViewObject sub = this.findViewObject("AGR1");
                  i don't what to use this-> sub.setNamedWhereClauseParam("tas_id", tas_id); the tas_id is not in AGR1 VIEWO
                  // sub.
                    sub.executeQuery();
                    Row row = sub.first();
                    par_id = (String)row.getAttribute("par_id");
                    agr_id = (String)row.getAttribute("id");
                    callPerformSdmsLogon("SMS_FORM_TO_ADf.delete_agr(?)", new Object[] {par_id,dref_id,tas_id,agr_id});
                }

i try this AM IN jDEVELOPER 11.1.2.1.0
                public void submit_agr(String par_id,String dref_id,String tas_id,String agr_id){
                    ViewObject sub = this.findViewObject("AGR1");
                    Row row = sub.first();
                    sub.setNamedWhereClauseParam("tas_id", new Number(10));-how will i pass this to my procedure
                    sub.setNamedWhereClauseParam("dref_id", new Number(10));-how will i pass this to my procedure
                    par_id = (String)row.getAttribute("par_id");
                    agr_id = (String)row.getAttribute("id");
                    sub.executeQuery();
                    callPerformSdmsLogon("SMS_FORM_TO_ADf.delete_agr(?)", new Object[] {par_id,dref_id,tas_id,agr_id});
                }how will i pass the two prameter to my procedure
Edited by: Tshifhiwa on 2012/07/01 3:14 PM

Passing text component to methods

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