Java PrintWriter println()用法及代碼示例

Java中的PrintWriter類的println()方法用於中斷流中的行。此方法不接受任何參數或返回任何值。

用法:

public void println()

參數：此方法不接受任何參數。

返回：此方法不返回任何值。

下麵的方法說明了println()方法的用法方式：

示例1:

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

輸出：

GFG

示例2:

// Java program to demonstrate 
// PrintWriter println() method 
  
import java.io.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
  
        try { 
  
            // Create a PrintWriter instance 
            PrintWriter writer 
                = new PrintWriter(System.out); 
  
            // Print the  value '1.65' 
            // to this stream using print() method 
            // This will put the  in the 
            // stream till it is printed on the console 
            writer.print(1.65); 
  
            // Break the line in the stream 
            // using println() method 
            writer.println(); 
  
            writer.flush(); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}

輸出：

1.65

相關用法

注：本文由純淨天空篩選整理自Kirti_Mangal大神的英文原創作品 PrintWriter println() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。