在D盤中建立檔案test.txt,檔案中內容為:hello Java,然後利用流把該檔案拷貝到E盤根目錄中
阿新 • • 發佈：2018-12-18
import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.FileWriter; import java.io.IOException; public class Change { public static void main(String[] args) throws IOException { FileWriter fw = new FileWriter("D:/tets.txt"); fw.write("hello java"); fw.close(); FileInputStream fis = new FileInputStream("d:/tets.txt"); FileOutputStream fos = new FileOutputStream("E:/tets.txt"); byte[] b = new byte[1024]; while(fis.read(b)!=-1) { fos.write(b); } fos.close(); fis.close(); } }