我正在制作一个打字程序，现在我已经为我的应用程序制作了一个主页，其中包含一个 Jlist，其中包含来自数据库的练习负载。这些练习包含文本，因此通过示例
在我的 Jlist 中有练习 1，其中包含以下文字：鲁道夫出去散步。
现在，如果您选择练习 1 并选择一个确定按钮，他将移动到下一页，其中包含一个 JtextField，其中包含文本 Rudolf 出去散步，以及一个供用户键入相同内容的 JTextfield。
现在我有一个问题，我不知道怎么做，所以当用户需要输入鲁道夫时，这个词被突出显示，当用户输入例如 Pieter 时，它标记了 Pieter 这个词，因为它是错误的，必须是鲁道夫。
文本显示在字段中的类的代码：
package View;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.ScrollPaneConstants;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultHighlighter;
import javax.swing.text.Highlighter;
import Model.ExcersizeFactory;
public class StartOefeningTekst extends JFrame implements KeyListener {
private JTextArea questionArea; //holds the file text
private JTextArea enterArea; //holds the text user type
private JPanel jPanel1;
private JScrollPane enterScroll, questionScroll; //scrollpane to add textpanes
//start and index are the starting and ending positions of current word to be typed
private int index=0;
private int start;
private String invoer=""; // this will store the word that is to be typed
private String typedword=""; // holds the current word we are typing
private int totalhit=0; // total word we have typed
private int wronghit=0; //number of mistakes
private Highlighter enterHt; //highlighter for file text
private Highlighter questionHt; //highlighter for type text
private Highlighter.HighlightPainter filepainter;
private Highlighter.HighlightPainter textpainter;
private boolean endfilestatus;
private boolean typingstartstatus;
public StartOefeningTekst() {
initGUI();
setText_QuestionArea();
}
public void setText_QuestionArea() {
questionArea.setText(ExcersizeFactory.getInstance().getClickedExcersize().getText());
}
public void underLine() {
String str=questionArea.getText();
if(str.length()>index){
String space=""; // to check the occurance of space or next line i.e. end of word
invoer=""; // this will store the word that is to be typed
start=index; //last position of previous word becomes the starting position of next word
//this loop runs until space or /n character comes
while(!space.equals("\n") && !space.equals(" ")){
space=""+str.charAt(index); //get character at index position
index++; // increment of index i.e. next time next character will fetch
}
invoer=str.substring(start,index-1); // store the words to typed
questionArea.setCaretPosition(start); // sets the courser to current postion
try {
enterHt.removeAllHighlights(); //removes all highlights added on filetext
enterHt.addHighlight(start, index-1, filepainter); //highlights the current word that is to be typed
} catch (Exception e) {
System.out.println("some problem with Highlighter "+e);
}
//runs the underLine function again if String sub has nothing
if(invoer.equals("")){
underLine();
}
}//end of if (that checks the index and file text length)
else{
endfilestatus=true;
// enterArea.setEditable(false);
}
}//end of underline method
// get endfilestatus
public boolean getfilestatus(){
return endfilestatus;
}
//for checking the text is correctly typed or not
public synchronized void check(String text){
invoer=invoer.trim();
//if word is not correctly typed
if(!invoer.equals(text)){
wronghit++; //increment in wronghit
//add highlight to the not correctly typed word
try {
questionHt.addHighlight(enterArea.getText().length()-text.length()-1, enterArea.getText().length()-1, textpainter);
} catch (BadLocationException e) {
e.printStackTrace();
}
}
totalhit++; //increment total hit
}//end of check
//backSpace function
public synchronized void backSpace(){
if(typedword.length()>0){
typedword=typedword.substring(0,typedword.length()-1);
}
else{
enterArea.append(" ");
}
}//end of backspace function
//key listener methods
public void keyPressed(KeyEvent ke){
if(ke.getKeyChar()==' '){
enterArea.append(" ");
}
typingstartstatus=true;
//System.out.println(ke.getKeyCode());
}
//key listener methods
public void keyTyped(KeyEvent ke){
enterArea.setCaretPosition(enterArea.getText().length()); //set course position at the end
String ch=""+ke.getKeyChar(); //gets the currently typed character
if((!ch.equals(" ") && !ch.equals("\n") && ke.getKeyChar()!=8 && ke.getKeyChar()!=9 && ke.getKeyChar()!=38 && ke.getKeyChar()!=39 && ke.getKeyChar()!=37 && ke.getKeyChar()!=40) || ch.equals("'") || ch.equals("(") || ch.equals("%") || ch.equals("&")){
typedword=typedword+ch;
}
else if(ke.getKeyChar()==8){
backSpace();
}
else{
if(typedword.length()>0){
check(typedword);
underLine();
typedword="";
}
}
//System.out.println(ttext);
}
//key listener methods
public void keyReleased(KeyEvent ke){
//if the arrow keys are pressed
if(ke.getKeyCode()==37 || ke.getKeyCode()==38 || ke.getKeyCode()==39 || ke.getKeyCode()==40)
{
enterArea.setCaretPosition(enterArea.getText().length());
System.out.println("released");
}
}
//result of typing test
public void result(float time, Container win){
enterArea.setEditable(false);
if(totalhit>0){
JOptionPane.showInternalMessageDialog(win, "Gross Speed : "+(int)(totalhit/(time/60))+" WPM \n"
+"Accuracy : "+(((totalhit-wronghit)*100)/totalhit)+"%"+"\n"
+"Net Speed : "+(int)((totalhit-wronghit)/(time/60))+" wpm", "Your Typing Speed Result ",JOptionPane.INFORMATION_MESSAGE);
}
else{
JOptionPane.showInternalMessageDialog(win, "You haven't Typed anything.");
}
}
//get typing start status
public boolean getTypingStartStatus(){
return typingstartstatus;
}
public void setTypingStartStatus(boolean set ){
typingstartstatus=set;
}
private void initGUI() {
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel1 = new JPanel();
endfilestatus=false;
typingstartstatus=false;
//questionArea
questionArea = new JTextArea(10,1);
questionArea.setLineWrap(true);
questionArea.setEditable(false);
questionArea.setWrapStyleWord(true);
questionArea.setFont(new Font("Arial",Font.PLAIN,17));
questionArea.setFocusable(false);
//file high lighter
filepainter = new DefaultHighlighter.DefaultHighlightPainter(Color.CYAN);
enterHt = new DefaultHighlighter();
questionArea.setHighlighter(enterHt);
questionScroll = new JScrollPane(questionArea);
questionScroll.setPreferredSize(new Dimension(400,200));
questionScroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
questionScroll.setBorder(questionScroll.getBorder());
enterArea = new JTextArea(10,1);
enterArea.setLineWrap(true);
enterArea.setWrapStyleWord(true);
enterArea.setFont(new Font("Times New Roman",Font.PLAIN,17));
//text high lighter
questionHt = new DefaultHighlighter();
textpainter = new DefaultHighlighter.DefaultHighlightPainter(Color.RED);
enterArea.setHighlighter(questionHt);
//scroll pane for enterArea
enterScroll = new JScrollPane(enterArea);
enterScroll.setPreferredSize(new Dimension(400,200));
enterScroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
enterScroll.setBorder(enterScroll.getBorder());
//adding to the frame
add(questionScroll);
add(enterScroll);
//addning keyListerner
enterArea.addKeyListener(this);
validate();
//under line the current word to be typed
underLine();
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(enterScroll, javax.swing.GroupLayout.DEFAULT_SIZE, 594, Short.MAX_VALUE)
.addComponent( questionScroll, javax.swing.GroupLayout.DEFAULT_SIZE, 594, Short.MAX_VALUE)
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addComponent( questionScroll, javax.swing.GroupLayout.DEFAULT_SIZE, 272, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(enterScroll, javax.swing.GroupLayout.PREFERRED_SIZE, 220, javax.swing.GroupLayout.PREFERRED_SIZE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
pack();
}
}