具体内容如下，关于java 题目！

Question

编写随机数创建句子的程序。使用4个名为article,noun,verb和preposition的字符串数组。
要求
01.通过按照article,noun,verb和preposition
的顺序 随机地从每个数组中选择一个单词来创建句子。
02.在挑选每个单词后，将它链接到句子前一个单词的后面。
03.这些单词应用空格分开。在输出最终的句子时，它的第一个字母应为大写，并用句号终止。
04.该程序应产生20个句子，并在一个文本区中输出他们。
05.使用窗体。

article数组应包含冠词the ，a，one，some,any
noun数组包含名词boy ，girl，dog，town,car
verb数组应包含drove,jumped,ran,walk,skipped
preposition数组应包含介词to ,from,over,under,on

Answer 1

import java.awt.*;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.util.Random;public class testWord {String[] article={"the", "a", "one", "some", "any"};String[] noun={"boy", "girl", "dog", "town", "car"};String[] verb={"drove", "jumped", "ran", "walk", "skipped"};String[] preposition={"to", "from", "over", "under", "on"};Frame frame=new Frame("test");TextArea ta=new TextArea();testWord(){ta.setSize(350, 250);frame.setSize(400,300);frame.add(ta);frame.addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {System.exit(0);}});}private int[] getSerial(){int[] result=new int[4];Random r=new Random();for(int i=0;i<4;i++)result[i]=r.nextInt(5);return result;}private String comb(String a, String n, String v, String p){return a.substring(0,1).toUpperCase()+a.substring(1,a.length())+" "+n+" "+v+" "+p+".";}public String getSentence(){int[] serial=getSerial();return comb(article[serial[0]], noun[serial[1]],verb[serial[2]], preposition[serial[3]]);}private void output(){String tmp="";for(int i=0;i<20;i++) tmp=tmp+getSentence()+"\n";ta.setText(tmp);frame.setVisible(true);}public static void main(String[] args) {testWord tw=new testWord();tw.output();}}&nbsp;

Answer 2

import javax.swing.SwingUtilities;import javax.swing.JPanel;import javax.swing.JFrame;import javax.swing.JLabel;import java.awt.Rectangle;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Random;import javax.swing.SwingConstants;import javax.swing.JScrollPane;import javax.swing.JTextArea;import javax.swing.JButton;public class HelpTest extends JFrame {private static final long serialVersionUID = 1L;/*** 下面的几个数组是用来保存各个单词的，可以自己添加其他的*/private String[] article = {"the","a","one","some","any"};private String[] noun = {"boy ","girl","dog","town","car"};private String[] verb = {"drove","jumped","ran","walk","skipped"};private String[] preposition = {"to","from","over","under","on"};private String sentence = "",word = null;//用来保存生成的句子 // @jve:decl-index=0:private JPanel jContentPane = null;private JLabel jLabel = null;private JScrollPane jScrollPane = null;private JTextArea jTextArea = null;private JButton jButton = null;private List addToList(){List list = new ArrayList();list.add(0, article);list.add(1, noun);list.add(2, verb);list.add(3, preposition);return list;}private String getSentence(){//获取句子List list = addToList();Iterator it = list.iterator();sentence = "";for(int i=0;i<4;i++){sentence = sentence + getWord((String[])it.next())+" ";}String cha = ""+sentence.charAt(0);sentence = sentence.substring(1);sentence = cha.toUpperCase()+sentence;return sentence;}private String getWord(String[] words){int len = words.length;Random r = new Random();int num = r.nextInt(len);word = words[num];return word;}private JScrollPane getJScrollPane() {if (jScrollPane == null) {jScrollPane = new JScrollPane();jScrollPane.setBounds(new Rectangle(34, 57, 453, 123));jScrollPane.setViewportView(getJTextArea());}return jScrollPane;}private JTextArea getJTextArea() {if (jTextArea == null) {jTextArea = new JTextArea();jTextArea.setLineWrap(true);jTextArea.setText("");}return jTextArea;}private JButton getJButton() {if (jButton == null) {jButton = new JButton();jButton.setBounds(new Rectangle(229, 198, 62, 21));jButton.setText("确定");jButton.addActionListener(new java.awt.event.ActionListener() {public void actionPerformed(java.awt.event.ActionEvent e) {for(int i=0;i<20;i++){jTextArea.append(getSentence()+"\n");}}});}return jButton;}public static void main(String[] args) {SwingUtilities.invokeLater(new Runnable() {public void run() {HelpTest thisClass = new HelpTest();thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);thisClass.setVisible(true);}});}public HelpTest() {super();initialize();}private void initialize() {this.setBounds(250, 200, 540, 275);this.setContentPane(getJContentPane());this.setTitle("句子生成器");this.setResizable(false);}private JPanel getJContentPane() {if (jContentPane == null) {jLabel = new JLabel();jLabel.setBounds(new Rectangle(145, 22, 224, 26));jLabel.setHorizontalAlignment(SwingConstants.CENTER);jLabel.setText("点击下面的按钮生成20句简单的话");jContentPane = new JPanel();jContentPane.setLayout(null);jContentPane.add(jLabel, null);jContentPane.add(getJScrollPane(), null);jContentPane.add(getJButton(), null);}return jContentPane;}}是想要这种结果的吗？我用的是Eclipse。不过在命令行下运行也是通过的。

Answer 3

好像挺简单的...import java.awt.*;import javax.swing.*;public class RandomSentence extends JFrame {private String[] article = { "the", "a", "one", "some", "any" };private String[] noun = { "boy", "girl", "dog", "town", "car" };private String[] verb ={"drove", "jumped", "ran", "walk", "skipped" };private String[] preposition = { "to", "from", "over","under","on" };private JTextArea ta;public RandomSentence() {super("随机创建句子");ta = new JTextArea();getContentPane().setLayout(new BorderLayout());getContentPane().add("Center", new JScrollPane(ta));setSize(300, 300);setVisible(true);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}public void sentence() {for (int i = 0; i < 20; i++) {String s1 = article[(int) (Math.random() * article.length)];String s11 = s1.substring(0, 1).toUpperCase().concat(s1.substring(1));String s2 = noun[(int) (Math.random() * noun.length)];String s3 = verb[(int) (Math.random() * verb.length)];String s4 = preposition[(int) (Math.random() * preposition.length)];StringBuffer s =new StringBuffer(s11 + " " + s2 + " " + s3 + " "+ s4 + ".");String str = s.toString();ta.append(str + "\n");}}public static void main(String[] args) {new RandomSentence().sentence();}}