Java IO Tutorial - Java DataInputStream.readInt()

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Syntax

DataInputStream.readInt() has the following syntax.

public final int readInt()   throws IOException

Example

In the following code shows how to use DataInputStream.readInt() method.

//from w w  w  .ja  va  2 s  . c  o m
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

public class Main {
  public static void main(String[] args) throws IOException {
    int[] i = { 123, 234, 345, 456, 678 };
    FileOutputStream fos = new FileOutputStream("c:\\test.txt");
    DataOutputStream dos = new DataOutputStream(fos);

    for (int j : i) {
      dos.writeInt(j);
    }
    dos.flush();

    InputStream is = new FileInputStream("c:\\test.txt");
    DataInputStream dis = new DataInputStream(is);

    while (dis.available() > 0) {
      int k = dis.readInt();
      System.out.print(k);
    }
  }
}

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