DoubleStream allMatch() method in Java

Java 8Object Oriented ProgrammingProgramming

The allMatch() method in the DoubleStream class returns whether all elements of this stream match the provided predicate.

The syntax is as follows −

boolean allMatch(DoublePredicate predicate)

Here, the argument predicate is a stateless predicate to apply to elements of this stream. The DoublePredicate is a predicate of one double-valued argument.

To use the DoubleStream class in Java, import the following package −

import java.util.stream.DoubleStream;

Create DoubleStream and add some elements −

DoubleStream doubleStream = DoubleStream.of(15.8, 28.7, 35.7, 48.1, 78.9);

Now, check whether the condition is TRUE for elements of the stream −

boolean res = doubleStream.allMatch(num -> num > 10);

The following is an example to implement DoubleStream allMatch() method in Java

Example

 Live Demo

import java.util.*;
import java.util.stream.DoubleStream;

public class Demo {
   public static void main(String[] args) {
      DoubleStream doubleStream = DoubleStream.of(15.8, 28.7, 35.7, 48.1, 78.9);
      boolean res = doubleStream.allMatch(num -> num > 10);
      System.out.println("Do all the elements match the predicate? "+res);
   }
}

Output

Do all the elements match the predicate? True
raja
Updated on 30-Jul-2019 22:30:25

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