import java.io.*; public class IO { public static void main(String[] args) throws IOException { int ch; System.out.println("please enter your char"); ch=System.in.read(); System.out.println((char)ch); } }
import java.io.*; public class IO { public static void main(String[] args) { int ch; System.out.println("please enter your char"); try{ ch=System.in.read(); System.out.println((char)ch); }catch(IOException e){ } } } 请捕获异常!!!
public class IO
{
public static void main(String[] args) throws IOException
{
int ch;
System.out.println("please enter your char");
ch=System.in.read();
System.out.println((char)ch);
}
}
try
{
ch = System.in.read();
}
catch(Exception ex)
public class IO
{
public static void main(String[] args)
{
int ch;
System.out.println("please enter your char");
try{
ch=System.in.read();
System.out.println((char)ch);
}catch(IOException e){ }
}
}
请捕获异常!!!
{
}
catch
{
}