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Functions Examples

Functions 1 - No description available.

Functions 2 - No description available.

Functions 3 - No description available.

Functions 4 - No description available.

Functions 5 - No description available.

Functions 6 - No description available.

Functions 7 - No description available.

Functions 8 - No description available.

Functions1 Example Code

// Copyright(c) 1996,1997 ObjectSpace, Inc.
import COM.objectspace.jgl.*;

public class Functions1
  {
  public static void main( String[] args )
    {
    Array array = new Array();
    array.add( new Integer( 3 ) );
    array.add( new Integer( -2 ) );
    array.add( new Integer( 3 ) );
    array.add( new Integer( -5 ) );
    array.add( new Integer( -4 ) );
    UnaryPredicate predicate = new PositiveNumber();
    int n = Counting.countIf( array, predicate );
    System.out.println( "Number of positive Integers in " + array + " = " + n );
    }
  }

Functions1 Example Output

Number of positive Integers in Array( 3, -2, 3, -5, -4 ) = 2

Functions2 Example Code

// Copyright(c) 1996,1997 ObjectSpace, Inc.
import COM.objectspace.jgl.*;

public class Functions2
  {
  public static void main( String[] args )
    {
    boolean array[] = { false, false, true, false, true };
    BooleanArray bools = new BooleanArray( array );
    UnaryPredicate predicate = new LogicalNot();
    int n = Counting.countIf( bools, predicate );
    System.out.println( "Number of false in " + bools + " = " + n );
    }
  }

Functions2 Example Output

Number of false in boolean[]( false, false, true, false, true ) = 3

Functions3 Example Code

// Copyright(c) 1996,1997 ObjectSpace, Inc.
import COM.objectspace.jgl.*;

public class Functions3
  {
  public static void main( String[] args )
    {
    Deque deque = new Deque();
    deque.add( "cat" );
    deque.add( "ape" );
    deque.add( "dog" );
    deque.add( "bat" );
    System.out.println( "unsorted = " + deque );
    BinaryPredicate comparator = new GreaterString();
    Sorting.sort( deque, comparator );
    System.out.println( "sorted = " + deque );
    }
  }

Functions3 Example Output

unsorted = Deque( cat, ape, dog, bat )
sorted = Deque( dog, cat, bat, ape )

Functions4 Example Code

// Copyright(c) 1996,1997 ObjectSpace, Inc.
import COM.objectspace.jgl.*;

public class Functions4
  {
  public static void main( String[] args )
    {
    long array[] = { 3, 1, 5, -2, 7, 9 };
    LongArray longArray = new LongArray( array );
    BinaryPredicate comparator = new LessNumber( new Long( 0 ).getClass() );
    System.out.println( "unsorted = " + longArray );
    Sorting.sort( longArray, comparator );
    System.out.println( "sorted = " + longArray );
    }
  }

Functions4 Example Output

unsorted = long[]( 3, 1, 5, -2, 7, 9 )
sorted = long[]( -2, 1, 3, 5, 7, 9 )

Functions5 Example Code

// Copyright(c) 1996,1997 ObjectSpace, Inc.
import COM.objectspace.jgl.*;

public class Functions5
  {
  public static void main( String[] args )
    {
    Deque deque = new Deque();
    deque.add( new Integer( 4 ) );
    deque.add( new Integer( -2 ) );
    deque.add( new Integer( 3 ) );
    UnaryFunction function = new NegateNumber();
    System.out.println( "before = " + deque );
    Transforming.transform( deque, deque.begin(), function );
    System.out.println( "after = " + deque );
    }
  }

Functions5 Example Output

before = Deque( 4, -2, 3 )
after = Deque( -4, 2, -3 )

Functions6 Example Code

// Copyright(c) 1996,1997 ObjectSpace, Inc.
import COM.objectspace.jgl.*;

public class Functions6
  {
  public static void main( String[] args )
    {
    DList list = new DList();
    list.add( "dog" );
    list.add( "ape" );
    list.add( "emu" );
    UnaryPredicate predicate = new BindSecondPredicate( new GreaterString(), "bat" );
    int n = Counting.countIf( list, predicate );
    System.out.println( "The number of strings in " + list + " > bat = " + n );
    }
  }

Functions6 Example Output

The number of strings in DList( dog, ape, emu ) > bat = 2

Functions7 Example Code

// Copyright(c) 1996,1997 ObjectSpace, Inc.
import COM.objectspace.jgl.*;

public class Functions7
  {
  public static void main( String[] args )
    {
    Array array = new Array();
    array.add( "ape" );
    array.add( "giraffe" );
    array.add( "lizard" );
    BinaryPredicate comparator = new BinaryComposePredicate( new GreaterNumber(), new LengthString(), new LengthString() );
    System.out.println( "before = " + array );
    Sorting.sort( array, comparator );
    System.out.println( "after = " + array );
    }
  }

Functions7 Example Output

before = Array( ape, giraffe, lizard )
after = Array( giraffe, lizard, ape )

Functions8 Example Code

// Copyright(c) 1997 ObjectSpace, Inc.
import COM.objectspace.jgl.*;

public class Functions8
  {
  public static void main( String[] args )
    {
    double array[] = { 3, 1, 5, -2, 7, 9 };
    DoubleArray doubleArray = new DoubleArray( array );
    BinaryPredicate comparator = new LessNumber( new Double( 0 ).getClass() );
    System.out.println( "unsorted = " + doubleArray );
    Sorting.sort( doubleArray, comparator );
    System.out.println( "sorted = " + doubleArray );
    }
  }

Functions8 Example Output

unsorted = double[]( 3.0, 1.0, 5.0, -2.0, 7.0, 9.0 )
sorted = double[]( -2.0, 1.0, 3.0, 5.0, 7.0, 9.0 )

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