Skip to content
Related Articles

Related Articles

Java Guava | Booleans.countTrue() method with Examples
  • Last Updated : 30 Jan, 2019

The countTrue() method of Booleans Class in Guava Library is used to count the number of values that are true in the specified boolean values passed as the parameter.

Syntax:

public static int countTrue(boolean... values)

Parameters: This method accepts the boolean values among which the true values are to be count.

Return values: This method returns an integer value which is the count of values that are true.

Example-1 :






// Java code to show implementation of
// Guava's Booleans.countTrue() 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 };
  
        // Using Booleans.countTrue() method to
        // get the number of values that are true
        System.out.println(Booleans.countTrue(arr));
    }
}
Output:
3

Example 2 :




// Java code to show implementation of
// Guava's Booleans.countTrue() 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, false,
                          false, false };
  
        // Using Booleans.countTrue() method to
        // get the number of values that are true
        System.out.println(Booleans.countTrue(arr));
    }
}
Output:
0

Reference: https://google.github.io/guava/releases/20.0/api/docs/com/google/common/primitives/Booleans.html#countTrue-boolean…-

Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more,  please refer Complete Interview Preparation Course.

My Personal Notes arrow_drop_up
Recommended Articles
Page :