Java uses the skip() function of the BufferedReader class to skip the specified number of bytes in the stream

Java uses the skip() function of the BufferedReader class to skip the specified number of bytes in the stream

The BufferedReader class is a commonly used input stream reading class in Java. It provides many powerful methods to read data. One of the commonly used methods is the skip() function, which can be used to skip a specified number of bytes in the input stream. This article will introduce how to use the skip() function of the BufferedReader class to implement this function and provide code examples.

First, we need to create a BufferedReader object, which can be achieved through the InputStreamReader class. The code is as follows:

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class SkipExample {
    public static void main(String[] args) {
        try {
            FileInputStream fis = new FileInputStream("input.txt");
            InputStreamReader isr = new InputStreamReader(fis);
            BufferedReader br = new BufferedReader(isr);

            // 跳过前5个字节
            br.skip(5);

            // 读取跳过后的内容
            String line;
            while ((line = br.readLine()) != null) {
                System.out.println(line);
            }

            // 关闭流
            br.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

In the above code, we first create a FileInputStream object and pass it to the constructor of InputStreamReader to create an InputStreamReader object. We then create a BufferedReader object by passing the InputStreamReader object to the BufferedReader constructor.

Next, we use the skip() function to skip the first 5 bytes in the input stream. Note that the parameter of the skip() function specifies the number of bytes to be skipped.

Finally, we use the readLine() function to read the skipped content in the input stream and print it to the console. Here we use a while loop until the read content is null.

Finally, we close the BufferedReader object at the end of the code to release resources.

The above code example implements the function of skipping the specified number of bytes in the stream through the skip() function of the BufferedReader class. You can modify the number of bytes in the code and the path of the input file to test according to your needs.

Summary:

This article describes how to use the skip() function of the BufferedReader class in Java to skip a specified number of bytes in the stream. By using the skip() function, we can easily skip data that does not need to be read, thus improving the efficiency of the program. I hope this article will help you understand and apply the skip() function of the BufferedReader class.

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