Java Ints contains() 函数

Guava的 Ints .contains( )函数在数组中的任何地方如果目标元素存在，则返回 true。

语法：

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

参数： 该方法接受以下参数：

array: 一个int值的数组，可能为空。
target: 一个原始的int值。

返回值： 本方法返回一个布尔值。如果数组[i]==目标值，则返回True。

例1：

// Java code to show implementation of
// Guava's Ints.contains() method
 
import com.google.common.primitives.Ints;
import java.util.Arrays;
 
class GFG {
 
    // Driver's code
    public static void main(String[] args)
    {
 
        // Creating an Integer array
        int[] arr = { 5, 4, 3, 2, 1 };
 
        int target = 3;
 
        // Using Ints.contains() method to search
        // for an element in the array. The method
        // returns true if element is found, else
        // returns false
        if (Ints.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2：

// Java code to show implementation of
// Guava's Ints.contains() method
 
import com.google.common.primitives.Ints;
import java.util.Arrays;
 
class GFG {
 
    // Driver's code
    public static void main(String[] args)
    {
 
        // Creating an Integer array
        int[] arr = { 2, 4, 6, 8, 10 };
 
        int target = 7;
 
        // Using Ints.contains() method to search
        // for an element in the array. The method
        // returns true if element is found, else
        // returns false
        if (Ints.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