Java Guava Chars.contains()用法及代码示例

Guava库中Chars类的contains()方法用于检查指定的char值数组中是否存在指定的值。要搜索的char值和要在其中搜索的char数组都被当作参数。

用法:

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

参数：此方法接受两个强制性参数：

array:这是一个char值数组，其中将搜索目标值。
target:这是要搜索数组中是否存在的char值。

返回值：此方法返回一个布尔值，该布尔值说明目标char值是否存在于指定的char数组中。如果目标值存在于数组中，则返回True。否则返回False。

以下示例程序旨在说明contains()方法的使用：

范例1：

// Java code to show implementation of 
// Guava's Chars.contains() method 
  
import com.google.common.primitives.Chars; 
import java.util.Arrays; 
  
class GFG { 
  
    // Driver's code 
    public static void main(String[] args) 
    { 
  
        // Creating a character array 
        char[] arr = { 'g', 'e', 'e', 'k', 's' }; 
  
        char target = 'k'; 
  
        // Using Chars.contains() method to search 
        // for an element in the array. The method 
        // returns true if element is found, else 
        // returns false 
        if (Chars.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

范例2：

// Java code to show implementation of 
// Guava's Chars.contains() method 
  
import com.google.common.primitives.Chars; 
import java.util.Arrays; 
  
class GFG { 
  
    // Driver's code 
    public static void main(String[] args) 
    { 
  
        // Creating a character array 
        char[] arr = { 'g', 'e', 'e', 'k', 's' }; 
  
        char target = 'a'; 
  
        // Using Chars.contains() method to search 
        // for an element in the array. The method 
        // returns true if element is found, else 
        // returns false 
        if (Chars.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

参考： https://google.github.io/guava/releases/18.0/api/docs/com/google/common/primitives/Chars.html#contains(char[], %20char)

相关用法

注：本文由纯净天空筛选整理自Sahil_Bansall大神的英文原创作品 Java Guava | Chars.contains() method with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。