• 随便写的随机数生成器,目前并没有实现设置精度和去重功能


    /*
     * To change this license header, choose License Headers in Project Properties.
     * To change this template file, choose Tools | Templates
     * and open the template in the editor.
     */
    package javatest;
    
    import java.util.Arrays;
    import java.util.Random;
    
    /**
     *
     * @author 17520
     */
    public class GameFrame extends javax.swing.JFrame
    {
    
        /**
         * Creates new form GameFrame
         */
        public GameFrame()
        {
            initComponents();
        }
    
        /**
         * This method is called from within the constructor to initialize the form.
         * WARNING: Do NOT modify this code. The content of this method is always
         * regenerated by the Form Editor.
         */
        @SuppressWarnings("unchecked")
        // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
        private void initComponents()
        {
    
            GamePanel = new javax.swing.JPanel();
            jLabel1 = new javax.swing.JLabel();
            ResultPanel = new javax.swing.JPanel();
            jScrollPane1 = new javax.swing.JScrollPane();
            ResultArea = new javax.swing.JTextArea();
            ResultArea.setLineWrap(true);
            ResultArea.setWrapStyleWord(true);
            RepeatCheckBox = new javax.swing.JCheckBox();
            AmountSpinner = new javax.swing.JSpinner();
            AmountSpinner.setModel(new javax.swing.SpinnerNumberModel(2, 2, 100, 1));
            MinSpinner = new javax.swing.JSpinner();
            MinSpinner.setModel(new javax.swing.SpinnerNumberModel(1, -1024, 1024,1));
            ExcuteSpinner = new javax.swing.JSpinner();
            ExcuteSpinner.setModel(new javax.swing.SpinnerNumberModel(0, 0, 5, 1));
            jLabel2 = new javax.swing.JLabel();
            jLabel3 = new javax.swing.JLabel();
            jLabel4 = new javax.swing.JLabel();
            MaxSpinner = new javax.swing.JSpinner();
            MaxSpinner.setModel(new javax.swing.SpinnerNumberModel(10, -1024, 1024,1));
            jLabel5 = new javax.swing.JLabel();
            GenButton = new javax.swing.JButton();
    
            setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
            setTitle("Yosha's random generator");
            setBackground(new java.awt.Color(28, 27, 32));
            getContentPane().setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());
    
            GamePanel.setBackground(new java.awt.Color(28, 27, 32));
            GamePanel.setForeground(new java.awt.Color(255, 255, 255));
            GamePanel.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            GamePanel.setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());
    
            jLabel1.setFont(new java.awt.Font("雅黑宋体", 1, 36)); // NOI18N
            jLabel1.setForeground(new java.awt.Color(240, 240, 240));
            jLabel1.setText("随机数生成器");
            GamePanel.add(jLabel1, new org.netbeans.lib.awtextra.AbsoluteConstraints(30, 10, 240, 60));
    
            ResultPanel.setBackground(new java.awt.Color(41, 40, 45));
            ResultPanel.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "结果序列", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("雅黑宋体", 0, 18), new java.awt.Color(240, 240, 240))); // NOI18N
            ResultPanel.setForeground(new java.awt.Color(255, 255, 255));
            ResultPanel.setAutoscrolls(true);
            ResultPanel.setFont(new java.awt.Font("微软雅黑", 0, 12)); // NOI18N
            ResultPanel.setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());
    
            ResultArea.setBackground(new java.awt.Color(41, 40, 45));
            ResultArea.setColumns(20);
            ResultArea.setFont(new java.awt.Font("雅黑宋体", 0, 18)); // NOI18N
            ResultArea.setForeground(new java.awt.Color(255, 255, 255));
            ResultArea.setRows(5);
            ResultArea.setCaretColor(new java.awt.Color(240, 240, 240));
            ResultArea.setDisabledTextColor(new java.awt.Color(240, 240, 240));
            jScrollPane1.setViewportView(ResultArea);
    
            ResultPanel.add(jScrollPane1, new org.netbeans.lib.awtextra.AbsoluteConstraints(10, 30, 380, 220));
    
            GamePanel.add(ResultPanel, new org.netbeans.lib.awtextra.AbsoluteConstraints(50, 200, 410, 270));
    
            RepeatCheckBox.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            RepeatCheckBox.setForeground(new java.awt.Color(255, 255, 255));
            RepeatCheckBox.setSelected(true);
            RepeatCheckBox.setText("可重复");
            GamePanel.add(RepeatCheckBox, new org.netbeans.lib.awtextra.AbsoluteConstraints(490, 320, -1, -1));
    
            AmountSpinner.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            AmountSpinner.setToolTipText("产生的个数");
            GamePanel.add(AmountSpinner, new org.netbeans.lib.awtextra.AbsoluteConstraints(230, 150, 50, -1));
    
            MinSpinner.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            MinSpinner.setToolTipText("最小值");
            GamePanel.add(MinSpinner, new org.netbeans.lib.awtextra.AbsoluteConstraints(220, 90, 50, -1));
    
            ExcuteSpinner.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            ExcuteSpinner.setToolTipText("精确到");
            GamePanel.add(ExcuteSpinner, new org.netbeans.lib.awtextra.AbsoluteConstraints(400, 150, 50, -1));
    
            jLabel2.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            jLabel2.setForeground(new java.awt.Color(240, 240, 240));
            jLabel2.setText("产生个数");
            GamePanel.add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(170, 150, 60, 20));
    
            jLabel3.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            jLabel3.setForeground(new java.awt.Color(240, 240, 240));
            jLabel3.setText("最小值");
            GamePanel.add(jLabel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(170, 90, 50, 20));
    
            jLabel4.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            jLabel4.setForeground(new java.awt.Color(240, 240, 240));
            jLabel4.setText("小数点后几位");
            GamePanel.add(jLabel4, new org.netbeans.lib.awtextra.AbsoluteConstraints(310, 150, 100, 20));
    
            MaxSpinner.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            MaxSpinner.setToolTipText("最大值");
            GamePanel.add(MaxSpinner, new org.netbeans.lib.awtextra.AbsoluteConstraints(360, 90, 50, -1));
    
            jLabel5.setFont(new java.awt.Font("雅黑宋体", 0, 14)); // NOI18N
            jLabel5.setForeground(new java.awt.Color(240, 240, 240));
            jLabel5.setText("最大值");
            GamePanel.add(jLabel5, new org.netbeans.lib.awtextra.AbsoluteConstraints(310, 90, 50, 20));
    
            GenButton.setBackground(new java.awt.Color(71, 70, 76));
            GenButton.setFont(new java.awt.Font("雅黑宋体", 1, 18)); // NOI18N
            GenButton.setForeground(new java.awt.Color(255, 255, 255));
            GenButton.setText("生成");
            GenButton.setCursor(new java.awt.Cursor(java.awt.Cursor.HAND_CURSOR));
            GenButton.addMouseListener(new java.awt.event.MouseAdapter()
            {
                public void mouseClicked(java.awt.event.MouseEvent evt)
                {
                    GenButtonMouseClicked(evt);
                }
            });
            GenButton.addActionListener(new java.awt.event.ActionListener()
            {
                public void actionPerformed(java.awt.event.ActionEvent evt)
                {
                    GenButtonActionPerformed(evt);
                }
            });
            GamePanel.add(GenButton, new org.netbeans.lib.awtextra.AbsoluteConstraints(490, 360, -1, 70));
    
            getContentPane().add(GamePanel, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 0, 610, 480));
    
            pack();
        }// </editor-fold>                        
    
        private void GenButtonActionPerformed(java.awt.event.ActionEvent evt)                                          
        {                                              
            // TODO add your handling code here:
        }                                         
    
        private void GenButtonMouseClicked(java.awt.event.MouseEvent evt)                                       
        {                                           
            // TODO add your handling code here:
            int max=Integer.valueOf(String.valueOf(MaxSpinner.getValue()));
            int min=Integer.valueOf(String.valueOf(MinSpinner.getValue()));
            int amount=Integer.valueOf(String.valueOf(AmountSpinner.getValue()));
            
            int []result=new int[amount];
            for(int i=0;i<amount;i++)
            {
                Random random=new Random();
                result[i]=random.nextInt(max)%(max-min+1)+min;
            }
            
            ResultArea.setText(Arrays.toString(result));
        }                                      
    
        /**
         * @param args the command line arguments
         */
        public static void main(String args[])
        {
            /* Set the Nimbus look and feel */
            //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
            /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
             * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
             */
            try
            {
                for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels())
                {
                    if ("Nimbus".equals(info.getName()))
                    {
                        javax.swing.UIManager.setLookAndFeel(info.getClassName());
                        break;
                    }
                }
            } catch (ClassNotFoundException ex)
            {
                java.util.logging.Logger.getLogger(GameFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
            } catch (InstantiationException ex)
            {
                java.util.logging.Logger.getLogger(GameFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
            } catch (IllegalAccessException ex)
            {
                java.util.logging.Logger.getLogger(GameFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
            } catch (javax.swing.UnsupportedLookAndFeelException ex)
            {
                java.util.logging.Logger.getLogger(GameFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
            }
            //</editor-fold>
    
            /* Create and display the form */
            java.awt.EventQueue.invokeLater(new Runnable()
            {
                public void run()
                {
                    new GameFrame().setVisible(true);
                }
            });
        }
    
        // Variables declaration - do not modify                     
        private javax.swing.JSpinner AmountSpinner;
        private javax.swing.JSpinner ExcuteSpinner;
        private javax.swing.JPanel GamePanel;
        private javax.swing.JButton GenButton;
        private javax.swing.JSpinner MaxSpinner;
        private javax.swing.JSpinner MinSpinner;
        private javax.swing.JCheckBox RepeatCheckBox;
        private javax.swing.JTextArea ResultArea;
        private javax.swing.JPanel ResultPanel;
        private javax.swing.JLabel jLabel1;
        private javax.swing.JLabel jLabel2;
        private javax.swing.JLabel jLabel3;
        private javax.swing.JLabel jLabel4;
        private javax.swing.JLabel jLabel5;
        private javax.swing.JScrollPane jScrollPane1;
        // End of variables declaration                   
    }
    

      

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  • 原文地址:https://www.cnblogs.com/yosha/p/5776039.html
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