a question about "byte"
int len = in.numBytes();
byte array[] = in.readBytes(len);
for(int i=0; i <array.length; i++ )
System.out.println(array[i]);/*******how can I print char?*******

Now, it just can print integer. But I want print character.

[解决办法]
System.out.println(new String(array));
[解决办法]
楼上正解。要不你就用String s = ins.readline();
一读一行