Guava – Booleans.contains()方法及示例

来源：这里教程网时间：2026-02-17 21:41:12 作者：

Guava – Booleans.contains()方法及示例

Guava库中Booleans类的contains()方法用于检查一个指定的值是否存在于指定的布尔值数组中。要搜索的布尔值和要搜索的布尔数组都作为一个参数。

语法:

public static boolean contains(boolean[] array,                               boolean target)

参数：该方法接受两个强制性参数。

array：这是一个布尔值的数组，目标值将在其中被搜索。target：是要在数组中搜索的布尔值。

返回值： 该方法返回一个布尔值，说明目标布尔值是否存在于指定的布尔数组中。如果目标值存在于数组中，它返回True。否则，它返回false。

下面的程序说明了contains()方法的使用。

例子-1 :

// Java code to show implementation of// Guava's Booleans.contains() method  import com.google.common.primitives.Booleans;import java.util.Arrays;  class GFG {      // Driver's code    public static void main(String[] args)    {          // Creating a Boolean array        boolean[] arr = { false, true, false,                          true, true };          boolean target = true;          // Using Booleans.contains() method to search        // for an element in the array. The method        // returns true if element is found, else        // returns false        if (Booleans.contains(arr, target))            System.out.println("Target is present "                               + "in the array");        else            System.out.println("Target is not "                               + "present in the array");    }}

输出:

Target is present in the array

例子 – 2 :

// Java code to show implementation of// Guava's Booleans.contains() method  import com.google.common.primitives.Booleans;import java.util.Arrays;  class GFG {      // Driver's code    public static void main(String[] args)    {          // Creating a Boolean array        boolean[] arr = { true, true, true,                          true, true };          boolean target = false;          // Using Booleans.contains() method to search        // for an element in the array. The method        // returns true if element is found, else        // returns false        if (Booleans.contains(arr, target))            System.out.println("Target is present "                               + "in the array");        else            System.out.println("Target is not present "                               + "in the array");    }}

输出: