| JGL - The Generic Collection Library for Java |
| JGL - The Generic Collection Library for Java |
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SList1 - Construction, enumeration, access, pushing, popping.
SList2 - Counting, finding, erasing, replacing, removing.
SList3 - Insertion.
SList4 - Exceptions.
SList5 - Splicing a SList into another.
SList6 - Splicing a piece of a SList into another.
SList7 - Removing.
SList1 Example Code
// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
import java.util.Enumeration;
/**
* Construction, enumeration, access, pushing, popping.
*
* @see com.objectspace.jgl.SList
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class SList1
{
public static void main( String[] args )
{
SList list = new SList();
list.pushBack( "bat" );
list.add( "cat" );
list.pushFront( "ape" );
System.out.println( list );
System.out.println();
System.out.println( "Enumerate the SList" );
Enumeration e = list.elements();
while ( e.hasMoreElements() )
System.out.println( e.nextElement() );
System.out.println();
System.out.println( "Iterate through the SList" );
for ( SListIterator i = list.begin(); !i.equals( list.end() ); i.advance() )
System.out.println( i.get() );
System.out.println();
System.out.println( "Demonstrate access" );
System.out.println( "list.at( 0 ) = " + list.at( 0 ) );
System.out.println( "list.front() = " + list.front() );
System.out.println( "list.at( 2 ) = " + list.at( 2 ) );
System.out.println( "list.back() = " + list.back() );
System.out.println();
System.out.println( "Demonstrate modification" );
list.put( 1, "fox" );
System.out.println( list );
System.out.println( "popFront() returns: " + list.popFront() );
System.out.println( "After popFront() = " + list );
System.out.println( "popBack() returns: " + list.popBack() );
System.out.println( "After popBack() = " + list );
}
}
SList( ape, bat, cat )
Enumerate the SList
ape
bat
cat
Iterate through the SList
ape
bat
cat
Demonstrate access
list.at( 0 ) = ape
list.front() = ape
list.at( 2 ) = cat
list.back() = cat
Demonstrate modification
SList( ape, fox, cat )
popFront() returns: ape
After popFront() = SList( fox, cat )
popBack() returns: cat
After popBack() = SList( fox )
SList2 Example Code
// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
/**
* Counting, finding, erasing, replacing, removing.
*
* @see com.objectspace.jgl.SList
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class SList2
{
public static void main( String[] args )
{
SList list = new SList();
list.add( "ape" );
list.add( "bat" );
list.add( "cat" );
list.add( "bat" );
list.add( "bat" );
list.add( "cat" );
System.out.println( list );
System.out.println();
System.out.println( "list.count( bat ) = " + list.count( "bat" ) );
SListIterator iterator = list.find( "bat" );
if ( !iterator.atEnd() )
{
System.out.println( "object at list.find( bat ) = " + iterator.get() );
list.remove( iterator );
System.out.println( "After list.remove( iterator ) = " + list );
}
SListIterator start = list.begin();
SListIterator finish = list.begin();
finish.advance( 3 );
list.replace( start, finish, "bat", "BAT" );
System.out.println( "After list.replace( start, finish, bat, BAT ) = " + list );
System.out.println( "list.remove( cat ) = " + list.remove( "cat" ) );
System.out.println( "After list.remove( cat ) = " + list );
list.remove( list.begin() );
System.out.println( "After list.remove( begin() ) = " + list );
}
}
SList( ape, bat, cat, bat, bat, cat )
list.count( bat ) = 3
object at list.find( bat ) = bat
After list.remove( iterator ) = SList( ape, cat, bat, bat, cat )
After list.replace( start, finish, bat, BAT ) = SList( ape, cat, BAT, bat, cat )
list.remove( cat ) = 2
After list.remove( cat ) = SList( ape, BAT, bat )
After list.remove( begin() ) = SList( BAT, bat )
SList3 Example Code
// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
/**
* Insertion.
*
* @see com.objectspace.jgl.SList
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class SList3
{
public static void main( String[] args )
{
SList list = new SList();
list.add( "bat" );
list.add( "cat" );
list.add( "dog" );
System.out.println( "list = " + list );
System.out.println();
list.insert( list.begin(), "ape" );
System.out.println( "After insert at begin = " + list );
list.insert( list.end(), "emu" );
System.out.println( "After insert at end = " + list );
SListIterator i = list.begin();
i.advance( 3 );
list.insert( i, 2, "fox" );
System.out.println( "After list.insert( i, 2, fox ) = " + list );
}
}
list = SList( bat, cat, dog )
After insert at begin = SList( ape, bat, cat, dog )
After insert at end = SList( ape, bat, cat, dog, emu )
After list.insert( i, 2, fox ) = SList( ape, bat, cat, fox, fox, dog, emu )
SList4 Example Code
// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
/**
* Exceptions.
*
* @see com.objectspace.jgl.SList
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class SList4
{
public static void main( String[] args )
{
SList list = new SList();
try
{
list.popBack();
}
catch ( InvalidOperationException exception )
{
System.out.println( "Caught " + exception );
}
list.add( "ape" );
list.add( "bat" );
list.add( "cat" );
try
{
list.at( 5 );
}
catch ( IndexOutOfBoundsException exception )
{
System.out.println( "Caught " + exception );
}
}
}
Caught com.objectspace.jgl.InvalidOperationException: SList is empty
Caught java.lang.IndexOutOfBoundsException: Attempt to access index 5 when valid range is 0..2
SList5 Example Code
// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
/**
* Splicing a SList into another.
*
* @see com.objectspace.jgl.SList
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class SList5
{
public static void main( String[] args )
{
SList list1 = new SList();
list1.add( "apple" );
list1.add( "banana" );
SList list2 = new SList();
list2.add( "lotus" );
list2.add( "ferrari" );
list2.add( "lamborghini" );
System.out.println( "before: list1 = " + list1 + ", list2 = " + list2 );
list1.splice( list1.begin(), list2 );
System.out.println( "after: list1 = " + list1 + ", list2 = " + list2 );
}
}
before: list1 = SList( apple, banana ), list2 = SList( lotus, ferrari, lamborghini )
after: list1 = SList( lotus, ferrari, lamborghini, apple, banana ), list2 = SList()
SList6 Example Code
// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
/**
* Splicing a piece of a SList into another.
*
* @see com.objectspace.jgl.SList
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class SList6
{
public static void main( String[] args )
{
SList list1 = new SList();
list1.add( "apple" );
list1.add( "banana" );
SList list2 = new SList();
list2.add( "lotus" );
list2.add( "ferrari" );
list2.add( "lamborghini" );
System.out.println( "before: list1 = " + list1 + ", list2 = " + list2 );
SListIterator i = list1.begin();
i.advance();
SListIterator start = list2.begin();
SListIterator finish = list2.begin();
finish.advance( 2 );
list1.splice( i, list2, start, finish );
System.out.println( "after: list1 = " + list1 + ", list2 = " + list2 );
}
}
before: list1 = SList( apple, banana ), list2 = SList( lotus, ferrari, lamborghini )
after: list1 = SList( apple, lotus, ferrari, banana ), list2 = SList( lamborghini )
SList7 Example Code
// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
/**
* Removing.
*
* @see com.objectspace.jgl.SList
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class SList7
{
public static void main( String[] args )
{
SList list = new SList();
list.add( "x" );
list.add( "l" );
list.add( "x" );
list.add( "g" );
list.add( "s" );
list.add( "s" );
System.out.println( "list = " + list );
list.remove( "x" );
System.out.println( "After list.remove( x ) = " + list );
}
}
list = SList( x, l, x, g, s, s )
After list.remove( x ) = SList( l, g, s, s )
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