java 输入字节
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import java.io.BufferedInputStream;
import java.io.IOException;
public class Main {
public static void main(String[] args) throws Exception {
char[] arr = new char[5];
BufferedInputStream cin = new BufferedInputStream(System.in);
int i = 0;
int data;
while ((data = cin.read()) != -1&&i<5) {
arr[i] = (char) data;
i++;
}
for (char ch : arr) {
System.out.println(ch);
}
cin.close();
}
}
