java题编写一个方法 编写一个javaapplication

package hello;
import java.io.*;
import java.util.Scanner;
/*import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;*/
public class Example03{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String inputStr=input.next();
input.close();
String replaceStr=inputStr.replaceAll(",", "&");
String[] str = replaceStr.split("&");
for (String s : str) {
if(s.equals("gench")){
System.out.println("上海建桥学院");
}
}
File file = new File("d:/myfile.txt");
try {
OutputStream outputStream = new FileOutputStream(file);
OutputStreamWriter writer = new OutputStreamWriter(outputStream);
writer.append(replaceStr);
writer.close();
outputStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}