老师好：我昨天做完时已经是11点多了，错过了提交时间，希望用此篇博客弥补一下我的过失。
import java.io.;
import java.lang.;
import java.util.Scanner;
public class MyCP {
public static void main(String args[]) {
try {
FileReader file=new FileReader("/Users/windows/Desktop/mycp.txt");
OutputStreamWriter binary=new OutputStreamWriter(new FileOutputStream("/Users/windows/Desktop/mycp.txt"));
BufferedReader br=new BufferedReader(file);
String strs=null;
while ((strs=br.readLine())!=null) {
System.out.println(strs);
int num=Integer.parseInt(strs);
//for (int i=0;i<strs.length();i++){
binary.write(Integer.toBinaryString(num));
System.out.print(Integer.toBinaryString(num));
//}
}
binary.close();
} catch (FileNotFoundException e) {
System.out.println(" NO file exist");
} catch (IOException e) {
e.printStackTrace();
}
System.out.println();
try {
FileReader file2=new FileReader("C:\Users\lenovo\zhuanyedajiesanshinian20155307\zhuanyedajiesanshinian20155307");
OutputStreamWriter test=new OutputStreamWriter(new FileOutputStream("C:\\Users\\LJY\\IdeaProjects\\Stream\\src\\test2.txt"));
BufferedReader br2=new BufferedReader(file2);
String strs2=null;
while ((strs2=br2.readLine())!=null) {
System.out.println(strs2);
//int num2=Integer.parseInt(strs2);
//for (int i=0;i<strs.length();i++){
test.write(Integer.parseInt(strs2,2));
System.out.println(Integer.parseInt(strs2,2));
//}
}
test.close();
} catch (FileNotFoundException e) {
System.out.println("file doesn't exist");
} catch (IOException e) {
e.printStackTrace();
}
}
}