Srinivas Kalvala

Below class reads the input from standard input stream. Please let me know if it is not what you are looking for ...

package com.test; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class CmdTest { public static void main(String[] args) { BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(System.in)); System.out.println("Reading data .... "); String data; try { while((data = bufferedReader.readLine()) != null){ System.out.println(data); } bufferedReader.close(); } catch (IOException e) { e.printStackTrace(); } } }


Test:
echo 'Hello' | java -cp . com.test.CmdTest

Result:
Reading data ....
'Hello'

Originally posted by Arockia Raj:
Anybody knows how to create UML Diagrams i.e Class diagram,Collaboration,Sequence Diagrams using IBM RAD(Rational Application Developer 6.0) for the existing RAD J2EE Project(Project interchange of the existing project is available)[/QUOTE

If you want to create class diagram for existing artifacts, then

Select all java files, right click then select following from context menu,

Visuvalize --> Add to new diagram file --> Class Diagram.

To draw new class diagrams manually, same steps can be followed, but modeling perspective would be best for this.

Thank you
[ February 04, 2008: Message edited by: Srinivas Kalvala ]

Hello,

If you want to know, exactly what happens ...

Modify your program like this and see the output.

public class Test { public static void main(String s[]) { float f; long l = 1000000000000000000L; f = l; System.out.println(f); } }


output:
----------
9.9999998E17
[ April 11, 2007: Message edited by: Srinivas Kalvala ]

Hello,

The size of the vector will be verified with the index position when a new object is being added.

If the size of the Vector is less than index position then java.lang.ArrayIndexOutOfBoundsException will be thrown.

Have a look at java source.

Note: The add method inturn will call following method.

/** * Inserts the specified object as a component in this vector at the * specified <code>index</code>. Each component in this vector with * an index greater or equal to the specified <code>index</code> is * shifted upward to have an index one greater than the value it had * previously. <p> * * The index must be a value greater than or equal to <code>0</code> * and less than or equal to the current size of the vector. (If the * index is equal to the current size of the vector, the new element * is appended to the Vector.)<p> * * This method is identical in functionality to the add(Object, int) method * (which is part of the List interface). Note that the add method reverses * the order of the parameters, to more closely match array usage. * * @param obj the component to insert. * @param index where to insert the new component. * @exception ArrayIndexOutOfBoundsException if the index was invalid. * @see #size() * @see #add(int, Object) * @see List */ public synchronized void insertElementAt(E obj, int index) { modCount++; if (index > elementCount) { throw new ArrayIndexOutOfBoundsException(index + " > " + elementCount); } ensureCapacityHelper(elementCount + 1); System.arraycopy(elementData, index, elementData, index + 1, elementCount - index); elementData[index] = obj; elementCount++; }

[ April 11, 2007: Message edited by: Srinivas Kalvala ]
[ April 11, 2007: Message edited by: Srinivas Kalvala ]

Hello,

If you can spend atleast 2 hours for reading the Study guide and 1 or 2 hours practice daily then you can do it in a little time span.

Try mock exams once you complete reading the study guide.

All the best.

Hello,

It compiles fine and gives the print in else part. The parent class for all classes in java is java.lang.Object class got default implementation for equals method.

/** * Indicates whether some other object is "equal to" this one. * <p> * The <code>equals</code> method implements an equivalence relation * on non-null object references: * <ul> * <li>It is <i>reflexive</i>: for any non-null reference value * <code>x</code>, <code>x.equals(x)</code> should return * <code>true</code>. * <li>It is <i>symmetric</i>: for any non-null reference values * <code>x</code> and <code>y</code>, <code>x.equals(y)</code> * should return <code>true</code> if and only if * <code>y.equals(x)</code> returns <code>true</code>. * <li>It is <i>transitive</i>: for any non-null reference values * <code>x</code>, <code>y</code>, and <code>z</code>, if * <code>x.equals(y)</code> returns <code>true</code> and * <code>y.equals(z)</code> returns <code>true</code>, then * <code>x.equals(z)</code> should return <code>true</code>. * <li>It is <i>consistent</i>: for any non-null reference values * <code>x</code> and <code>y</code>, multiple invocations of * <tt>x.equals(y)</tt> consistently return <code>true</code> * or consistently return <code>false</code>, provided no * information used in <code>equals</code> comparisons on the * objects is modified. * <li>For any non-null reference value <code>x</code>, * <code>x.equals(null)</code> should return <code>false</code>. * </ul> * <p> * The <tt>equals</tt> method for class <code>Object</code> implements * the most discriminating possible equivalence relation on objects; * that is, for any non-null reference values <code>x</code> and * <code>y</code>, this method returns <code>true</code> if and only * if <code>x</code> and <code>y</code> refer to the same object * (<code>x == y</code> has the value <code>true</code> :wink: . * <p> * Note that it is generally necessary to override the <tt>hashCode</tt> * method whenever this method is overridden, so as to maintain the * general contract for the <tt>hashCode</tt> method, which states * that equal objects must have equal hash codes. * * @param obj the reference object with which to compare. * @return <code>true</code> if this object is the same as the obj * argument; <code>false</code> otherwise. * @see #hashCode() * @see java.util.Hashtable */ [B] public boolean equals(Object obj) { return (this == obj); } [/B]

Hello,

This is also good.

http://www-128.ibm.com/developerworks/java/library/j-jtp05273.html

Hello,

Have a look at following link.

What is Object hash code?

Hello,

I am building a web application, in which JSP pages and certain controls are visible to only one set of users and will be hide to other users. I want to control the entitlements of my application.

I did some google search on this, but I did not find any useful and right away to apply stuff.


Please can any one suggest a best way to control entitlements in an typical J2EE Application.
[ February 12, 2007: Message edited by: Bear Bibeault ]

hello,

First always remember: " Clearly stated problem is half solved".

In this case, it is very clear that, JSP does contain some script errors.

Please review your JSP page or Post the JSP page code here.

Can you tell me, how can we test that one ?

Or

Can you tell me, the problems that can occur with the use of request.getContxtPath() in jsp directly ?

Originally posted by Bear Bibeault:
Did you try it? Did you ask him what the issue might be?

How else, at least using scriplets, would you expect to obtain the context path?

Some of the forums says, the JSP page will be translated every time, if it see that method() ...

Is it true ?
[ February 09, 2007: Message edited by: Srinivas Kalvala ]

Hello,

One of my friend told that, the JSP page will not be traslated if following line is included in JSP.

<%=request.getContextPath()%>

is he correct ? or any other problem is associated with this ?

Refer this,
http://www.javaworld.com/javaworld/jw-10-1996/jw-10-indepth.html

Hello,

Try,

Properties properties=System.getProperties(); Enumeration enumeration= properties.keys(); Iterator iterator=properties.values().iterator(); while(enumeration.hasMoreElements()&&iterator.hasNext()) System.out.println(enumeration.nextElement()+" : "+iterator.next());