Java番石榴 |带有示例的 Floats.contains() 方法

Guava 库中Floats 类的contains()方法用于检查指定的值是否存在于指定的浮点值数组中。要搜索的浮点值和要搜索的浮点数组都作为参数。

句法：

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

参数：此方法接受两个强制参数：

• 数组：这是一个浮点值数组，其中要搜索的目标值。
• 目标：这是要在数组中搜索存在的浮点值。

返回值：此方法返回一个布尔值，说明目标浮点值是否存在于指定的浮点数组中。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 Floats.contains() method
  
import com.google.common.primitives.Floats;
import java.util.Arrays;
  
class GFG {
  
    // Driver's code
    public static void main(String[] args)
    {
  
        // Creating a Float array
        float[] arr = { 5.2f, 4.2f, 3.4f, 2.3f, 1.5f };
  
        float target = 3.4f;
  
        // Using Floats.contains() method to search
        // for an element in the array. The method
        // returns true if element is found, else
        // returns false
        if (Floats.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 Floats.contains() method
  
import com.google.common.primitives.Floats;
import java.util.Arrays;
  
class GFG {
  
    // Driver's code
    public static void main(String[] args)
    {
  
        // Creating a Float array
        float[] arr = { 2.3f, 4.4f, 6.5f, 8.6f, 10.7f };
  
        float target = 7.5f;
  
        // Using Floats.contains() method to search
        // for an element in the array. The method
        // returns true if element is found, else
        // returns false
        if (Floats.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/19.0/api/docs/com/google/common/primitives/Floats.html#contains(float[], %20float)