Java 番石榴| Booleans.contains()方法示例
原文:https://www . geesforgeks . org/Java-guava-booleans-contains-method-with-examples/
番石榴库中 布尔类 的 contains() 方法用于检查指定的布尔值数组中是否存在指定的值。要搜索的布尔值和要搜索的布尔数组都被作为参数。
语法:
public static boolean contains(boolean[] array,
boolean target)
参数:该方法接受两个强制参数:
- Array: is an array of Boolean values in which to search for the target value.
- Target: is the Boolean value in the array to search for existence.
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。如果数组中存在目标值，则返回真。否则返回假。
下面的程序说明了 contains()方法的使用:
示例-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
示例–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:
Target is not present in the array
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