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📜  Java中的 PrintStream println(String) 方法及示例

📅  最后修改于: 2022-05-13 01:54:42.264000             🧑  作者: Mango

Java中的 PrintStream println(String) 方法及示例

Java中PrintStream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
// PrintStream println(String) 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
            // to be printed in the stream
            String string = "GeeksForGeeks";
  
            // print the string
            // to this stream using print() method
            // This will put the string in the stream
            // till it is printed on the console
            stream.println(string);
  
            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}
输出:
GeeksForGeeks

方案二:

// Java program to demonstrate
// PrintStream println(String) 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
            // to be printed in the stream
            String string = "GFG";
  
            // print the string
            // to this stream using print() method
            // This will put the string in the stream
            // till it is printed on the console
            stream.println(string);
  
            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}
输出:
GFG