Java 中的 AtomicLongArray get()方法,示例
原文:https://www . geesforgeks . org/atomicongarray-get-method-in-Java-with-examples/
Java . util . concurrent . atomic . AtomicLongArray . get()是 Java 中的一个内置方法,可以在 atomicongarray 的任何位置获取当前值。此方法将索引值作为参数,并返回该索引处的值。
语法:
public final long get(int i)
参数:该函数接受单个参数 i ,即要获取的索引值。
返回值:该函数返回索引 i 处的当前值。
下面的程序说明了上述方法:
程序 1:
// Java program that demonstrates
// the get() 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 to get
int idx = 2;
// Using get() to retrieve value at idx
long val = arr.get(idx);
// Displaying the value at idx
System.out.println("Value at index " + idx
+ " is " + val);
}
}
Output:
The array : [1, 2, 3, 4, 5]
Value at index 2 is 3
程序 2:
// Java program that demonstrates
// the get() function
import java.util.concurrent.atomic.AtomicLongArray;
public class GFG {
public static void main(String args[])
{
// Initializing an array
long a[] = { 12, 22, 23, 24, 25 };
// Initializing an AtomicLongArray with array a
AtomicLongArray arr = new AtomicLongArray(a);
// Displaying the AtomicLongArray
System.out.println("The array : " + arr);
// Index to get
int idx = 4;
// Using get() to retrieve value at idx
long val = arr.get(idx);
// Displaying the value at idx
System.out.println("Value at index " + idx
+ " is " + val);
}
}
Output:
The array : [12, 22, 23, 24, 25]
Value at index 4 is 25
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