我似乎無法正確地將數據寫入文件。在命令行參數中,儘管聲明瞭previousley方法,仍然存在一個錯誤,指出'symbol method writeHtmlFile(java.lang.String)'找不到。寫入文件時,命令行參數無法識別聲明的方法
這是在下面的代碼中概述: 任何意見將不勝感激。
new Main().writeHtmlFile("ChangeDrawer.html"); //DISPLAYS THE ERROR THAT THE SYMBOL
//METHOD writeHtmlFile(java.lang.String)
//CANNOT BE FOUND
//CALLING ON THE METHOD
{
String selection="";
Scanner scan = new Scanner (System.in);
System.out.println ("Enter P to make a purchase and receive your change");
System.out.println ("Enter L to load the Change drawer");
System.out.println ("Enter H to write the contents of the Change Drawer to a web page");
System.out.println ("Enter E to exit the program");
while (selection.compareTo("E")!=0)
{
selection = scan.next();
if (selection.compareTo("P")== 0)
makeChange();
else if (selection.compareTo("L")==0)
loadFloat();
else if (selection.compareTo("H")==0)
writeHtmlFile();
}
System.out.println ("Ending .............................. ");
}
// THE METHOD TO WRITE THE FILE
public static void writeHtmlFile()
{
String ChangeDrawer;
BufferedWriter bufferedWriter = null;
try {
//Construct the BufferedWriter object
bufferedWriter = new BufferedWriter(new FileWriter(ChangeDrawer));
//Start writing to the output stream
bufferedWriter.write("Writing line one to file");
bufferedWriter.newLine();
bufferedWriter.write("Writing line two to file");
} catch (FileNotFoundException ex) {
ex.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
//Close the BufferedWriter
try {
if (bufferedWriter != null) {
bufferedWriter.flush();
bufferedWriter.close();
}
//COMMAND LINE ARGUMENTS
public static void main(String[] args) {
new Main().writeHtmlFile("ChangeDrawer.html"); //DISPLAYS THE ERROR THAT THE SYMBOL
//METHOD writeHtmlFile(java.lang.String)
//CANNOT BE FOUND
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
這是關於這段代碼的第三或第四個問題,我今晚見過你。您是否想過閱讀Java編程教程或書籍?您遇到任何教程都會涉及的基本語言概念問題。 – vanza 2012-07-26 05:34:23