Java中的 LongAdder decrement() 方法及示例

Java中的LongAdder 类创建一个初始和为零的新加法器。 Java.LongAdder.decrement()是Java中的一个内置方法，可将值减 1。

句法：

public void decrement()

参数：该函数不接受任何参数。

返回值：该方法不返回任何值。

下面的程序演示了上述函数：

方案一：

// Java program to demonstrate
// the LongAdder.decrement() method
  
import java.lang.*;
import java.util.concurrent.atomic.LongAdder;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initialized with 0
        LongAdder num = new LongAdder();
  
        // Print the initial value
        System.out.println("Initial value is: "
                           + num);
  
        // Add 6 to it
        num.add(6);
  
        // Print the new value
        System.out.println("After addition"
                           + " of 6, value is: "
                           + num);
  
        // decrement operation on num
        num.decrement();
  
        // Print after decrement
        System.out.println("After decrement, "
                           + " value is: "
                           + num);
    }
}

输出：

Initial value is: 0
After addition of 6, value is: 6
After decrement,  value is: 5

方案二：

// Java program to demonstrate
// the LongAdder.decrement() method
  
import java.lang.*;
import java.util.concurrent.atomic.LongAdder;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initialized with 0
        LongAdder num = new LongAdder();
  
        // Print the initial value
        System.out.println("Initial value is: "
                           + num);
  
        // Add 10 to it
        num.add(10);
  
        // Print the new value
        System.out.println("After addition"
                           + " of 10, value is: "
                           + num);
  
        // decrement operation on num
        num.decrement();
  
        // Print after decrement
        System.out.println("After decrement, "
                           + " value is: "
                           + num);
    }
}

输出：

Initial value is: 0
After addition of 10, value is: 10
After decrement,  value is: 9