[Chapter 24] 24.3 java.io.BufferedReader (JDK 1.1)

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| Chapter 24 The java.io Package |

## 24.3 java.io.BufferedReader (JDK 1.1)

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This class applies buffering to a character input stream, thereby improving the efficiency of character input. You create a `BufferedReader` by specifying some other character input stream that it is to buffer input from. (You can also specify a buffer size at this time, although the default size is usually fine.) Typically you use this sort of buffering when you are using a `FileReader` or `InputStreamReader`.

`BufferedReader` defines the standard set of `Reader` methods, and also provides a `readLine()` method that reads a line of text (not including the line-terminators) and returns it as a `String`.

`BufferedReader` is the character-stream analog of `BufferedInputStream`. It also provides a replacement for the deprecated `readLine()` method of `DataInputStream`, which did not properly convert bytes into characters.

    public class BufferedReader extends Reader {
        // Public Constructors
                public BufferedReader(Reader in, int sz);
                public BufferedReader(Reader in);
        // Public Instance Methods
                public void close() throws IOException;  // Defines Reader
                public void mark(int readAheadLimit) throws IOException;  // Overrides Reader
                public boolean markSupported();  // Overrides Reader
                public int read() throws IOException;  // Overrides Reader
                public int read(char[] cbuf, int off, int len) throws IOException;  // Defines Reader
                public String readLine() throws IOException;
                public boolean ready() throws IOException;  // Overrides Reader
                public void reset() throws IOException;  // Overrides Reader
                public long skip(long n) throws IOException;  // Overrides Reader
    }

### Hierarchy:

Object->Reader->BufferedReader

### Extended By:

LineNumberReader

java.io.BufferedOutputStream (JDK 1.0) |  | java.io.BufferedWriter (JDK 1.1)