我正在尝试写入文件。
我在 writeHtmlFile 方法中声明了一个异常，但是当我尝试调用 writeHtmlFile 方法时，仍然出现错误“必须捕获或声明要抛出未报告的异常 java.io.IOException”？
public class PartB extends ChangeDrawer
{
public static ChangeDrawer cd = new ChangeDrawer();
static int[] floatDrawer = {8,5,4,4,5,20,20,6,10,3,8};
{
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(); //unreported exception java.io.IOException must be caught or
//declared to be thrown
}
System.out.println ("Ending .............................. ");
}
//more code exists between these two sets
public static void writeHtmlFile() throws IOException
{
FileWriter fwriter = new FileWriter("ChangeDrawer.html");
PrintWriter outputFile = new PrintWriter(fwriter);
outputFile.println("This should work!");
}