Java中的LongAdder類創建一個初始和為零的新加法器。 Java.LongAdder.sum()是java中的一個內置方法,該方法返回總和。
用法:
public long sum()
參數:該函數不接受任何參數。
返回值:該方法返回當前總和。
以下程序演示了該函數:
下麵的程序演示了上述函數:
示例1:
// Java program to demonstrate
// the LongAdder.sum() 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 final value
System.out.println("After addition"
+ " of 6, value is: "
+ num);
// Add 5 to it
num.add(5);
// Print the final value
System.out.println("After addition"
+ " of 5, value is: "
+ num);
// sum operation on num
num.sum();
// Print after sum
System.out.println("Returned sum value is: "
+ num);
}
}
輸出:
Initial value is: 0 After addition of 6, value is: 6 After addition of 5, value is: 11 Returned sum value is: 11
示例2:
// Java program to demonstrate
// the LongAdder.sum() 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 final value
System.out.println("After addition"
+ " of 10, value is: "
+ num);
// Add 100 to it
num.add(100);
// Print the final value
System.out.println("After addition"
+ " of 100, value is: "
+ num);
// sum operation on num
num.sum();
// Print after sum
System.out.println("Returned sum value is: "
+ num);
}
}
輸出:
Initial value is: 0 After addition of 10, value is: 10 After addition of 100, value is: 110 Returned sum value is: 110
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注:本文由純淨天空篩選整理自Twinkl Bajaj大神的英文原創作品 LongAdder sum() method in Java with Examples。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。