如何在Windows上从命令行运行Java程序?
import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException; import java.io.InputStream;import java.io.OutputStream;public class CopyFile{ public static void main(String[] args) { InputStream inStream = null; OutputStream outStream = null; try { File afile = new File("input.txt"); File bfile = new File("inputCopy.txt"); inStream = new FileInputStream(afile); outStream = new FileOutputStream(bfile); byte[] buffer = new byte[1024]; int length; // copy the file content in bytes while ((length = inStream.read(buffer)) > 0) { outStream.write(buffer, 0, length); } inStream.close(); outStream.close(); System.out.println("File is copied successful!"); } catch (IOException e) { e.printStackTrace(); } }}
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