Java DoubleAccumulator toString()方法及示例

Java.DoubleAccumulator.toString() 是java中的一个内置方法，用于返回当前值的字符串表示。数值被明确地转换为字符串，其中初始数据类型为双数。

语法

public String toString()

参数： 该方法不接受任何参数。

返回值： 该方法返回当前值的字符串表示。

下面的程序说明了上述方法。

程序1 :

// Java program to demonstrate// the toString() method  import java.lang.*;import java.util.concurrent.atomic.DoubleAccumulator;  public class GFG {    public static void main(String args[])    {        DoubleAccumulator num            = new DoubleAccumulator(                Double::sum, 0L);          // accumulate operation on num        num.accumulate(42);        num.accumulate(10);          // before toString the value is        System.out.println("DoubleAccumulator: "                           + num.get());          // Print String representation        System.out.println("String representation: "                           + num.toString());    }}

输出:

DoubleAccumulator: 52.0String representation: 52.0

程序2

// Java program to demonstrate// the toString() method  import java.lang.*;import java.util.concurrent.atomic.DoubleAccumulator;  public class GFG {    public static void main(String args[])    {        DoubleAccumulator num            = new DoubleAccumulator(                Double::sum, 0L);          // accumulate operation on num        num.accumulate(75);        num.accumulate(1);          // before toString the value is        System.out.println("DoubleAccumulator: "                           + num.get());          // Print String representation        System.out.println("String representation: "                           + num.toString());    }}

输出:

DoubleAccumulator: 76.0String representation: 76.0