Java by API/java.io/BufferedOutputStream

BufferedOutputStream: write(byte[] b, int off, int len)

   <source lang="java">

import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; public class Main {

 public static void main(String[] args) throws Exception {
   String fromFileName = "from.txt";
   String toFileName = "to.txt";
   BufferedInputStream in = new BufferedInputStream(new FileInputStream(fromFileName));
   BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(toFileName));
   byte[] buff = new byte[32 * 1024];
   int len;
   while ((len = in.read(buff)) > 0)
     out.write(buff, 0, len);
   in.close();
   out.close();
 }

}

 </source>
   
  
 
  

BufferedOutputStream: write(int i)

   <source lang="java">
 

/*

* Output:
*/

import java.io.BufferedOutputStream; import java.io.FileOutputStream; public class MainClass {

 public static void main(String args[]) {
   try {
     FileOutputStream fos = new FileOutputStream(args[0]);
     BufferedOutputStream bos = new BufferedOutputStream(fos);
     for (int i = 0; i < 12; i++) {
       bos.write(i);
     }
     bos.close();
   } catch (Exception e) {
     System.out.println("Exception: " + e);
   }
 }

}

 </source>
   
  
 
  

new BufferedOutputStream(OutputStream out)

   <source lang="java">
 

import java.io.BufferedOutputStream; import java.io.DataOutputStream; import java.io.FileOutputStream; import java.io.IOException; public class Main {

 public static void main(String[] arguments) {
   int[] primes = new int[400];
   int numPrimes = 0;
   int candidate = 2;
   while (numPrimes < 400) {
     primes[numPrimes] = candidate;
     numPrimes++;
     candidate++;
   }
   try {
     FileOutputStream file = new FileOutputStream("p.dat");
     BufferedOutputStream buff = new BufferedOutputStream(file);
     DataOutputStream data = new DataOutputStream(buff);
     for (int i = 0; i < 400; i++)
       data.writeInt(primes[i]);
     data.close();
   } catch (IOException e) {
     System.out.println("Error - " + e.toString());
   }
 }

}

 </source>