In this tutorial how to read from the file using FileInputStream class in Core Java is shown.
Code:
FileInputStreamDemo.java
import java.io.*;
class Test4
{
public static void main(String[] args)
{
String fileName=”temp1.txt”;
try
{
byte[] buffer = new byte[1000];
FileInputStream inputStream = new FileInputStream(fileName);
int total = 0;
int nRead = 0;
while((nRead = inputStream.read(buffer))!= -1)
{
System.out.println(new String(buffer));
total += nRead;
}
inputStream.close();
System.out.println(“Read “+total+” bytes”);
}
catch(FileNotFoundException ex)
{
System.out.println(“Unable to open file ‘”+fileName+”‘”);
}
catch(IOException ex)
{
System.out.println(“Error readinf file ‘”+fileName+”‘”);
}
}
}
