xiangmu.zip

package demo3; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; public class Wyy { public static void main(String[] args) throws IOException { // File f=new File("D://idea"); // f.mkdir(); File f=new File("D://idea/test.txt"); // boolean newFile = f.createNewFile(); // // System.out.println(f.getName()); // System.out.println(f.exists()); // System.out.println(f.getAbsolutePath()); // System.out.println(f.isDirectory()); // System.out.println(f.isFile()); // FileOutputStream fileOutputStream=new FileOutputStream(f); // String content="王俊凯最帅"; // fileOutputStream.write(content.getBytes()); FileInputStream fileInputStream=new FileInputStream(f); int data=0; byte b[]=new byte[20]; while ((data=fileInputStream.read(b,0,20))!=-1) { System.out.println(new String(b,0,data)); } } }