Java中的 PrintStream println(Object) 方法及示例

Java中PrintStream类的println(Object)方法用于在流上打印指定的Object然后换行。这个对象被当作一个参数。

句法：

public void println(Object object)

参数：此方法接受一个强制参数对象，即要在流中打印的对象。

返回值：此方法不返回任何值。

下面的方法说明了 println(Object) 方法的工作：

方案一：

// Java program to demonstrate
// PrintStream println(Object) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);
  
            // Get the char[] object
            // to be printed in the stream
            char[] object = { 'G', 'e', 'e', 'k', 's',
                              'F', 'o', 'r',
                              'G', 'e', 'e', 'k', 's' };
  
            // print the object
            // to this stream using print() method
            // This will put the object in the stream
            // till it is printed on the console
            stream.println(object);
  
            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出：

GeeksForGeeks

方案二：

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

输出：

GFG