Java番石榴 |带有示例的 Chars.contains() 方法
Guava 库中Chars 类的contains()方法用于检查指定的值是否存在于指定的 char 值数组中。要搜索的 char 值和要在其中搜索的 char 数组都作为参数。
句法:
public static boolean contains(char[] array,
char target)
参数:此方法接受两个强制参数:
- array:这是一个 char 值的数组,其中要搜索的目标值。
- target:这是要在数组中搜索存在的 char 值。
返回值:此方法返回一个布尔值,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 。
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 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
示例 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)