I'm a college student. So this problem may be a little silly. Thanks
to help me.
Why it always throw the NumberFormatException?
---------------------------------------------------------------------------------------------------------------------
ArrayList<Integer> inputNum = new ArrayList<Integer>();
try {
System.out.println(" Please input an integer：");
while (true) {
byte buffer[] = new byte[128];
System.in.read(buffer);
if ("end".equals(buffer.toString().trim())) {
break;
}
else {
inputNum.add(Integer.parseInt(buffer.toString().trim()));
}
}
}
catch (IOException e) {
System.out.println(e.toString());
}
catch (NumberFormatException e) {
System.out.println("Please input an integer.");
}
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