Java 中的 PrintStream println(长)方法,示例

原文:https://www . geesforgeks . org/print stream-print lnlong-method-in-Java-with-examples/

Java 中 【打印流】 类的 println(long) 方法是将指定的 long 值打印在流上,然后换行。这个长值被当作一个参数。

语法:

public void println(long longValue)

参数:该方法接受一个强制参数长值,它是要写入流的长值。

返回值:此方法不返回值。

下面的方法说明了 println(long)方法的工作原理:

程序 1:

// Java program to demonstrate
// PrintStream println(long) method

import java.io.*;

class GFG {
    public static void main(String[] args)
    {

        try {

            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);

            // Print the long value '4'
            // to this stream using println() method
            // This will put the longValue in the
            // stream till it is printed on the console
            stream.println(4);

            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

4

程序 2:

// Java program to demonstrate
// PrintStream println(long) method

import java.io.*;

class GFG {
    public static void main(String[] args)
    {

        try {

            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);

            // Print the long value '65'
            // to this stream using println() method
            // This will put the longValue in the
            // stream till it is printed on the console
            stream.println(65);

            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

65