Introduction
The Java.io StringReader is the class used to read the character stream in the form of string which acts as a source to Java.io StringReader. The string reader is a subclass to the reader class, it overrides all the methods from reader class.
Declaration
Java.io StringReader class is declared below:
Public class StringReader extends Reader Fields
Java.io StringReader class fields are:
- Protected Object Lock : For synchronize operations this object is used in StringReader.
Table
| Constructor | Description |
|---|---|
| String Reader(String s) | The function of this constructor is to create the string reader instance and used to read from the character stream. |
Table
| Method | Description |
|---|---|
| void close () | The function of this method is to close the present stream and associated to this stream, systems resources are released without any impact. |
| Long skip (long m) | The function of this method is to skip the text or characters in this stream of ' m ' characters. |
| Boolean markSupported () | The function of this method is to check the represented mark method is supported by this stream or not |
| int read(Char[] cbuf, int off, int n) | By using this method it reads the data up to 'n' bytes from the character stream into an array of characters. |
Description
From the following classes, methods are inherited to the string reader class.
- Java.io.object
- Java.io.Reader
Examples
Following is an example..
[c]package com.cp.io;
import java.io.IOException;
import java.io.StringReader;
public class StringReaderDemo {
public static void main(String[] args) {
String str = "Hello World! \nThis is StringReader Program.";
StringReader sr = new StringReader(str);
int i=0;
try {
while((i=sr.read())!=-1){
System.out.print((char)i);
}
} catch (IOException e) {
e.printStackTrace();
}
}
} [/c]
Output
The result will be as follows.
[java]Hello World!
This is StringReader Program.[/java]
Key Points
- The string reader is the class used to read the character stream in the form of string which acts as a source to string reader.
- The string reader is a subclass to the reader class, it overrides all the methods from reader class.