Java 中的 AtomicLongArray lazySet()方法，带示例
原文:https://www . geeksforgeeks . org/atomicongarray-lazy set-method-in-Java-with-examples/
Java . util . concurrent . atomic . AtomicLongArray . lazyset()是 Java 中的一个内置方法，它最终会在 atomicongarray 的任何给定索引处设置一个给定值。该方法将 AtomicLongArray 的索引值和要设置的值作为参数，并在不返回任何内容的情况下更新以前的值。
语法:
公开最终作废 lazySet(int i，long newValue)
参数:函数取两个参数:
-
i 是要进行更新的索引值。 newValue* which is the new value to update at the index.
返回值:函数不返回值。
下面的程序说明了上述方法:
程序 1:
```java // Java program that demonstrates // the lazySet() function
import java.util.concurrent.atomic.AtomicLongArray;
public class GFG { public static void main(String args[]) { // Initializing an array long a[] = { 1, 2, 3, 4, 5 };
// Initializing an AtomicLongArray // with array a AtomicLongArray arr = new AtomicLongArray(a);
// Displaying the AtomicLongArray System.out.println("The array : " + arr);
// Index where operation is performed int idx = 0;
// The new value to update at idx long val = 10;
// Updating the value at // idx applying lazySet arr.lazySet(idx, val);
// Displaying the AtomicLongArray System.out.println("The array after" + " update : " + arr); } } ```
Output:
```java The array : [1, 2, 3, 4, 5] The array after update : [10, 2, 3, 4, 5]
```
程序 2:
```java // Java program that demonstrates // the lazySet() function
import java.util.concurrent.atomic.AtomicLongArray;
public class GFG { public static void main(String args[]) { // Initializing an array long a[] = { 1, 2, 3, 4, 5 };
// Initializing an AtomicLongArray // with array a AtomicLongArray arr = new AtomicLongArray(a);
// Displaying the AtomicLongArray System.out.println("The array : " + arr);
// Index where operation is performed int idx = 3;
// The new value to update at idx long val = 100;
// Updating the value at // idx applying lazySet arr.lazySet(idx, val);
// Displaying the AtomicLongArray System.out.println("The array after " + "update : " + arr); } } ```
Output:
```java The array : [1, 2, 3, 4, 5] The array after update : [1, 2, 3, 100, 5]
```
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