Java PrintStream println(float)用法及代码示例

Java中PrintStream类的println(float)方法用于在流上打印指定的float值，然后换行。该浮点值用作参数。

用法:

public void println(float floatValue)

参数：此方法接受强制参数floatValue，该参数是要写入流中的浮点值。

返回值：此方法不返回任何值。

下面的方法说明了println(float)方法的用法：

示例1:

// Java program to demonstrate 
// PrintStream println(float) method 
  
import java.io.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
  
        try { 
  
            // Create a PrintStream instance 
            PrintStream printr 
                = new PrintStream(System.out); 
  
            // Print the float value '4.5' 
            // to this stream using println() method 
            // This will put the floatValue in the 
            // stream till it is printed on the console 
            printr.println(4.5); 
  
            printr.flush(); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}

输出：

4.5

示例2:

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

输出：

1.65

相关用法

注：本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 PrintStream println(float) method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。