Maior - menor : Pares e ímpares em array

Neste código temos um bom exemplo de como separar números
 pares e ímpares num array de inteiros.
O programa mostra ainda o menor e o maior número ímpar
e o menor e o maior número par.
As impressões foram feitas usando a biblioteca
javafx, a avançada e poderosa biblioteca do java.

Veja abaixo uma imagem do programa em execução:

import javafx.application.Application;

import javafx.collections.ObservableList;

import javafx.scene.Group;

import javafx.scene.Node;

import javafx.scene.Scene;

import javafx.scene.effect.*;

import javafx.scene.paint.Color;

import javafx.scene.shape.Rectangle;

import javafx.scene.text.Font;

import javafx.scene.text.FontWeight;

import javafx.scene.text.Text;

import javafx.stage.Stage;

public class PROJETO extends Application {

     Stage stage;

     Scene scene;

     @Override

     public void start ( Stage stage ) {

          stage.show ( );

          scene = new Scene ( new Group ( ), 760, 600, Color.BLACK );

          ObservableList < Node > content = ( ( Group ) scene.getRoot ( ) )

                     .getChildren ( );

          stage.setScene ( scene );

          stage.setTitle ( "IMPRIMINDO VETOR" );

          content.add ( Vetor ( ) );

          content.add ( Vetor_1 ( ) );

          content.add ( Vetor_2 ( ) );

     }

     static Node Vetor ( ) {

          String tudo = "";

          String tudo_3 = "";

          String tudo_4 = "";

          String tudo_5 = "";

          String tudo_6 = "";

          String tudo_7 = "";

          String tudo_8 = "";

          int b = 0, f = 0, v = 50, x;

          int i, maior = 0, menor = 0;

          boolean xx = true;

          int n = 100, a = 0;

          int reais [ ] = new int [ n ];

          for ( i = 1; i <= n; i++ ) {

                reais [ a ] = i;

                a++;

          }

          for ( i = 0; i < n; i++ ) {

                tudo = tudo + reais [ i ];

                if ( i == 19 ) {

                     tudo += ( "\n" );

                }

                if ( i == 39 )

                     tudo += ( "\n" );

                if ( i == 59 )

                     tudo += ( "\n" );

                if ( i == 79 )

                     tudo += ( "\n" );

                tudo += ( "  " );

          }

          Group g = new Group ( );

          Rectangle r = new Rectangle ( );

          r.setX ( -20 );// lado esquerdo

          r.setY ( 25 );// cima

          r.setWidth ( 700 );// lado direito

          r.setHeight ( 550 );// baixo

          r.setFill ( Color.WHITE );

          Text t = new Text ( );

          t.setText ( tudo );

          t.setFill ( Color.BLACK );

          t.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

          t.setX ( 25 );

          t.setY ( 100 );

          g.setCache ( true );

          g.getChildren ( ).add ( r );

          g.getChildren ( ).add ( t );

          g.setTranslateX ( 50 );

          // //////////////////////////////////////////////////////////////////////

          Text tt = new Text ( );

          tt.setFill ( Color.BLACK );

          tt.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

          tt.setX ( 25 );

          tt.setY ( 340 );

          g.getChildren ( ).add ( tt );

          Text t_t = new Text ( );

          t_t.setFill ( Color.RED );

          t_t.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

          t_t.setX ( 210 );

          t_t.setY ( 340 );

          g.getChildren ( ).add ( t_t );

          // //////////////////////////////////////////////////////////////////////

          Text tt_1 = new Text ( );

          tt_1.setFill ( Color.BLACK );

          tt_1.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

          tt_1.setX ( 25 );

          tt_1.setY ( 320 );

          g.getChildren ( ).add ( tt_1 );

          Text tt_2 = new Text ( );

          tt_2.setFill ( Color.RED );

          tt_2.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

          tt_2.setX ( 210 );

          tt_2.setY ( 320 );

          g.getChildren ( ).add ( tt_2 );

          if ( xx ) {

                Text tt_3 = new Text ( );

                Text tt_4 = new Text ( );

                Text tt_5 = new Text ( );

                Text tt_6 = new Text ( );

                Text tt_7 = new Text ( );

                Text tt_8 = new Text ( );

                Text tt_9 = new Text ( );

                Text tt_10 = new Text ( );

                Text tt_11 = new Text ( );

                Text tt_12 = new Text ( );

                Text tt_13 = new Text ( );

                Text tt_14 = new Text ( );

                for ( x = 1; x <= 100; x++ ) {

                     tt_3.setText ( "Abaixo os 50 números pares entre 1 e 100" );

                     tt_3.setFill ( Color.GREEN );

                     tt_3.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                     tt_3.setX ( 170 );

                     tt_3.setY ( 230 );

                     if ( x % 2 == 0 ) {

                          tudo_3 = tudo_3 + x;

                          tt_4.setText ( tudo_3 );

                          tt_4.setFill ( Color.RED );

                          tt_4.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                          tt_4.setX ( 25 );

                          tt_4.setY ( 270 );

                          if ( x == 52 ) {

                               tudo_3 += ( "\n" );

                          }

                     }

                     if ( x % 2 == 1 ) {

                          tudo_4 = tudo_4 + x;

                          tt_6.setText ( "Abaixo os 50 números ímpares entre 1 e 100" );

                          tt_6.setFill ( Color.GREEN );

                          tt_6.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                          tt_6.setX ( 170 );

                          tt_6.setY ( 330 );

                          tudo_3 += ( " " );

                          tt_7.setText ( tudo_4 );

                          tt_7.setFill ( Color.BLUE );

                          tt_7.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                          tt_7.setX ( 25 );

                          tt_7.setY ( 370 );

                          if ( x == 51 ) {

                               tudo_4 += ( "\n" );

                          }

                          tudo_4 += ( " " );

                     }

                }

                for ( x = 1; x <= 100; x++ ) {

                     if ( x % 2 == 0 ) {

                          for ( i = 1; i <= v; i++ )

                               reais [ f ] = x;

                          f++;

                          menor = reais [ 0 ];

                          for ( i = 1; i < v; i++ )

                               if ( reais [ i ] < menor )

                                     menor = reais [ i ];

                          maior = reais [ 0 ];

                          for ( i = 1; i < v; i++ )

                               if ( reais [ i ] > maior )

                                     maior = reais [ i ];

                     }

                }

                tudo_5 = tudo_5 + menor;

                tudo_6 = tudo_6 + maior;

                tt_5.setText ( "O menor número par é " );

                tt_5.setFill ( Color.GREEN );

                tt_5.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                tt_5.setX ( 170 );

                tt_5.setY ( 420 );

                tt_8.setText ( tudo_5 );

                tt_8.setFill ( Color.RED );

                tt_8.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                tt_8.setX ( 390 );

                tt_8.setY ( 420 );

                tt_9.setText ( "O maior número par é " );

                tt_9.setFill ( Color.GREEN );

                tt_9.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                tt_9.setX ( 170 );

                tt_9.setY ( 440 );

                tt_10.setText ( tudo_6 );

                tt_10.setFill ( Color.RED );

                tt_10.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                tt_10.setX ( 390 );

                tt_10.setY ( 440 );

                for ( x = 1; x <= 100; x++ ) {

                     if ( x % 2 == 1 ) {

                          reais [ b ] = x;

                          b++;

                          menor = reais [ 0 ];

                          for ( i = 1; i < v; i++ )

                               if ( reais [ i ] < menor )

                                     menor = reais [ i ];

                          maior = reais [ 0 ];

                          for ( i = 1; i < v; i++ )

                               if ( reais [ i ] > maior )

                                     maior = reais [ i ];

                     }

                }

                tudo_7 = tudo_7 + menor;

                tudo_8 = tudo_8 + maior;

                tt_11.setText ( "O menor número ímpar é " );

                tt_11.setFill ( Color.GREEN );

                tt_11.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                tt_11.setX ( 170 );

                tt_11.setY ( 460 );

                tt_12.setText ( tudo_7 );

                tt_12.setFill ( Color.RED );

                tt_12.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                tt_12.setX ( 390 );

                tt_12.setY ( 460 );

                tt_13.setText ( "O maior número ímpar é " );

                tt_13.setFill ( Color.GREEN );

                tt_13.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                tt_13.setX ( 170 );

                tt_13.setY ( 480 );

                tt_14.setText ( tudo_8 );

                tt_14.setFill ( Color.RED );

                tt_14.setFont ( Font.font ( null, FontWeight.BOLD, 18 ) );

                tt_14.setX ( 390 );

                tt_14.setY ( 480 );

                g.getChildren ( ).add ( tt_3 );

                g.getChildren ( ).add ( tt_4 );

                g.getChildren ( ).add ( tt_5 );

                g.getChildren ( ).add ( tt_6 );

                g.getChildren ( ).add ( tt_7 );

                g.getChildren ( ).add ( tt_8 );

                g.getChildren ( ).add ( tt_9 );

                g.getChildren ( ).add ( tt_10 );

                g.getChildren ( ).add ( tt_11 );

                g.getChildren ( ).add ( tt_12 );

                g.getChildren ( ).add ( tt_13 );

                g.getChildren ( ).add ( tt_14 );

          }

          return g;

     }

     // //////////////////////////////////////////////////////////////////////////

     static Node Vetor_1 ( ) {

          Group g = new Group ( );

           String Msg = "MUITO OBRIGADO";

          DropShadow ds = new DropShadow ( );

          ds.setOffsetY ( 3.0f );

          ds.setColor ( Color.color ( 0.4f, 0.4f, 0.4f ) );

          Text t = new Text ( );

          t.setEffect ( ds );

          t.setCache ( true );

          t.setX ( -60.0f );

          t.setY ( 550.0f );

          t.setFill ( Color.RED );

          t.setText ( Msg );

          t.setFont ( Font.font ( null, FontWeight.BOLD, 26 ) );

          g.setCache ( true );

          g.setEffect ( new Bloom ( ) );

          g.getChildren ( ).add ( t );

          g.setTranslateX ( 350 );

          return g;

     }

     // //////////////////////////////////////////////////////////////////////////

     static Node Vetor_2 ( ) {

          Group g = new Group ( );

          String Msg = "IMPRIMINDO VETOR";

          Rectangle r = new Rectangle ( );

          DropShadow ds = new DropShadow ( );

          ds.setOffsetY ( 3.0f );

          ds.setColor ( Color.color ( 0.4f, 0.4f, 0.4f ) );

          Text t = new Text ( );

          t.setEffect ( ds );

          t.setCache ( true );

          t.setX ( 230.0f );

          t.setY ( 60.0f );

          t.setFill ( Color.RED );

          t.setText ( Msg );

          t.setFont ( Font.font ( null, FontWeight.BOLD, 22 ) );

          g.setCache ( true );

          g.setEffect ( new Bloom ( ) );

          g.getChildren ( ).add ( r );

          g.getChildren ( ).add ( t );

          g.setTranslateX ( 50 );

          return g;

     }

     public static void main ( String [ ] args ) {

          Application.launch ( args );

     }

}