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StringReader read(char[]) method in Java with Examples

Last Updated : 11 Jul, 2025
The read(char[]) method of StringReader Class in Java is used to read the specified characters into an array. This method blocks the stream till:
  • It has taken some input from the stream.
  • Some IOException has occurred
  • It has reached the end of the stream while reading.
Syntax:
public int read(char[] charArray)
Parameters: This method accepts a mandatory parameter charArray which is the character array to be written in the Stream. Return Value: This method returns an integer value which is the number of characters read from the stream. It returns -1 if no character has been read. Exception: This method throws IOException if some error occurs while input-output. Below methods illustrates the working of read(char[]) method: Program 1:
Output:
[G, e, e, k, s]
Program 2:
Output:
[G, e, e, k, s, F, o, r, G, e, e, k, s]
Reference: https://docs.oracle.com/javase/9/docs/api/java/io/Reader.html#read-char:A-
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