Guava庫中Booleans類的contains()方法用於檢查指定的布爾值數組中是否存在指定的值。要搜索的布爾值和要在其中搜索的布爾數組都被當作參數。
用法:
public static boolean contains(boolean[] array, boolean target)
參數:此方法接受兩個強製性參數:
- array:這是布爾值的數組,將在其中搜索目標值。
- target:這是要搜索數組中是否存在的布爾值。
返回值:此方法返回一個布爾值,該布爾值說明在指定的布爾數組中是否存在目標布爾值。如果目標值存在於數組中,則返回True。否則返回false。
以下示例程序旨在說明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");
}
}
輸出:
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");
}
}
輸出:
Target is not present in the array
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注:本文由純淨天空篩選整理自Sahil_Bansall大神的英文原創作品 Java Guava | Booleans.contains() method with Examples。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。