Java中的 AtomicIntegerArray get() 方法及示例
Java.util.concurrent.atomic.AtomicIntegerArray.get()是Java中的一个内置方法,它获取 AtomicIntegerArray 任意位置的当前值。该方法以索引值作为参数,返回该索引处的值。
句法:
public final int get(int i)
参数:该函数接受单个参数,即要获取的索引值。
返回值:函数返回索引i处的当前值。
下面的程序说明了上述方法:
方案一:
// Java program that demonstrates
// the get() function
import java.util.concurrent.atomic.AtomicIntegerArray;
public class GFG {
public static void main(String args[])
{
// Initializing an array
int a[] = { 1, 2, 3, 4, 5 };
// Initializing an AtomicIntegerArray with array a
AtomicIntegerArray arr = new AtomicIntegerArray(a);
// Displaying the AtomicIntegerArray
System.out.println("The array : " + arr);
// Index to get
int idx = 2;
// Using get() to retrieve value at idx
int val = arr.get(idx);
// Displaying the value at idx
System.out.println("Value at index " + idx
+ " is " + val);
}
}
输出:
The array : [1, 2, 3, 4, 5]
Value at index 2 is 3
方案二:
// Java program that demonstrates
// the get() function
import java.util.concurrent.atomic.AtomicIntegerArray;
public class GFG {
public static void main(String args[])
{
// Initializing an array
int a[] = { 12, 22, 23, 24, 25 };
// Initializing an AtomicIntegerArray with array a
AtomicIntegerArray arr = new AtomicIntegerArray(a);
// Displaying the AtomicIntegerArray
System.out.println("The array : " + arr);
// Index to get
int idx = 4;
// Using get() to retrieve value at idx
int val = arr.get(idx);
// Displaying the value at idx
System.out.println("Value at index " + idx
+ " is " + val);
}
}
输出:
The array : [12, 22, 23, 24, 25]
Value at index 4 is 25
参考: https: Java/util/concurrent/atomic/AtomicIntegerArray.html#get(int)