Java PrintWriter print(long)方法及实例

Java中 PrintWriter 类的 print(long) 方法是用来在流中打印指定的长值。这个长值被作为一个参数。这个方法类似于 write(String.valueOf(long ))，其中String.valueOf(long)返回字节数，这些字节数在write()方法的帮助下被写入流。

语法

public void print(long longValue)

参数： 该方法接受一个强制性参数 longValue ，它是要写入流中的长值。

返回值： 该方法不返回任何值。

下面的方法说明了print(long)方法的工作原理。

程序 1 :

// Java program to demonstrate
// PrintWriter print(long) method
 
import java.io.*;
 
class GFG {
    public static void main(String[] args)
    {
 
        try {
 
            // Create a PrintWriter instance
            PrintWriter printr
                = new PrintWriter(System.out);
 
            // Print the long value '4'
            // to this stream using print() method
            // This will put the longValue in the
            // stream till it is printed on the console
            printr.print(4);
 
            printr.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出

4

程序2

// Java program to demonstrate
// PrintWriter print(long) method
 
import java.io.*;
 
class GFG {
    public static void main(String[] args)
    {
 
        try {
 
            // Create a PrintWriter instance
            PrintWriter printr
                = new PrintWriter(System.out);
 
            // Print the long value '65'
            // to this stream using print() method
            // This will put the longValue in the
            // stream till it is printed on the console
            printr.print(65);
 
            printr.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出

65