Java中的 PrintWriter print(float) 方法及示例

Java中PrintWriter类的print(float)方法用于在流上打印指定的浮点值。这个浮点值被作为一个参数。

句法：

public void print(float floatValue)

参数：此方法接受一个强制参数floatValue ，它是要写入流的浮点值。

返回值：此方法不返回任何值。

下面的方法说明了 print(float) 方法的工作：

方案一：

// Java program to demonstrate
// PrintWriter print(float) 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 float value '4.5'
            // to this stream using print() method
            // This will put the floatValue in the
            // stream till it is printed on the console
            printr.print(4.5);
  
            printr.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出：

4.5

方案二：

// Java program to demonstrate
// PrintWriter print(float) 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 float value '1.65'
            // to this stream using print() method
            // This will put the floatValue in the
            // stream till it is printed on the console
            printr.print(1.65);
  
            printr.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出：

1.65