Java中的 PrintWriter println(String) 方法及示例

Java中PrintWriter类的println(String)方法用于在流上打印指定的String，然后换行。这个字符串被当作一个参数。

句法：

public void println(String string)

参数：此方法接受一个强制参数字符串，该字符串是要在 Stream 中打印的字符串。

返回值：此方法不返回任何值。

下面的方法说明了 println(String) 方法的工作：

方案一：

// Java program to demonstrate
// PrintWriter println(String) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintWriter instance
            PrintWriter writer
                = new PrintWriter(System.out);
  
            // Get the String
            // to be printed in the stream
            String string = "GeeksForGeeks";
  
            // print the string
            // to this writer using print() method
            // This will put the string in the stream
            // till it is printed on the console
            writer.println(string);
  
            writer.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出：

GeeksForGeeks

方案二：

// Java program to demonstrate
// PrintWriter println(String) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintWriter instance
            PrintWriter writer
                = new PrintWriter(System.out);
  
            // Get the String
            // to be printed in the stream
            String string = "GFG";
  
            // print the string
            // to this writer using print() method
            // This will put the string in the stream
            // till it is printed on the console
            writer.println(string);
  
            writer.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出：

GFG