CharArrayReader Read Character Array Java

The CharArrayReader is equivalent to ByteArrayInputStream. For ByteArrayInputStream, the source is a byte array and for CharArrayReader the source is a character array. The CharArrayReader reads characters from a character array either completely or partially starting from a offset. This classes supports mark() and reset() methods.

Following is the class signature

public class CharArrayReader extends Reader

Reading a Character Array

Example on CharArrayReader Read Character Array Java

import java.io.*;
public class CARDemo
{
  public static void main(String args[]) throws IOException
  {
    char carray[] = { 'S','E',' ', 'l','i','f','e',' ','n','o','t',' ','b','e','d',' ','o','f',' ','r','o','s','e','s' };

    CharArrayReader careader1 = new CharArrayReader(carray);  
    CharArrayReader careader2 = new CharArrayReader(carray, 7, 12);
                                                                     
    int temp;
    System.out.print("Reading all the array : ");
    while( ( temp = careader1.read() ) != -1)
    {
      System.out.print((char) temp);
    }
                                
    System.out.print("\nreading part of the array : ");
    while( ( temp = careader2.read() ) != -1)
    {
      System.out.print((char) temp);
    }
    careader1.close();
    careader2.close();
   }
}

Output screenshot on CharArrayReader Read Character Array Java

CharArrayReader careader1 = new CharArrayReader(carray);
CharArrayReader careader2 = new CharArrayReader(carray, 7, 12);

The character array carray is passed to two CharArrayReader constructors. The first CharArrayReader object careader1 reads complete array and the second object careader2 reads 12 characters starting from 7th.

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