Java中的 BufferedWriter newLine() 方法及示例

Java中BufferedWriter类的newLine()方法用于将下一行分隔为新行。它用作缓冲写入器流中的写入分隔符。

句法：

public void newLine()
            throws IOException

参数：此方法不接受任何参数。

返回值：此方法不返回任何值。

异常：如果发生 I/O 错误，此方法将引发IOException 。

下面的程序说明了 IO 包中 BufferedWriter 类中的 newLine() 方法：

方案一：

// Java program to illustrate
// BufferedWriter newLine() method
  
import java.io.*;
  
public class GFG {
    public static void main(String[] args)
        throws IOException
    {
  
        // Create the string Writer
        StringWriter stringWriter
            = new StringWriter();
  
        // Convert stringWriter to
        // bufferedWriter
        BufferedWriter buffWriter
            = new BufferedWriter(
                stringWriter);
  
        // Write "A" to buffer writer
        buffWriter.write(65);
  
        // Revoke newLine() method
        buffWriter.newLine();
  
        // Write "B" to buffer writer
        buffWriter.write(66);
  
        buffWriter.flush();
  
        System.out.println(
            stringWriter.getBuffer());
    }
}

输出：

A
B

方案二：

// Java program to illustrate
// BufferedWriter newLine() method
  
import java.io.*;
  
public class GFG {
    public static void main(String[] args)
        throws IOException
    {
        // Create the string Writer
        StringWriter stringWriter
            = new StringWriter();
  
        // Convert stringWriter to
        // bufferedWriter
        BufferedWriter buffWriter
            = new BufferedWriter(
                stringWriter);
  
        // Write "GEEKS" to buffered writer
        buffWriter.write(
            "GEEKSFORGEEKS", 0, 5);
  
        // Revoke newLine() method
        buffWriter.newLine();
  
        // Write "GEEKSFORGEEKS"
        // to buffered writer
        buffWriter.write(
            "GEEKSFORGEEKS", 0, 13);
  
        buffWriter.flush();
  
        System.out.println(
            stringWriter.getBuffer());
    }
}

输出：

GEEKS
GEEKSFORGEEKS

参考：
https://docs.oracle.com/javase/10/docs/api/java Java()