Java 8 Streams Java Java API
Interface:
java.util.stream.DoubleStream
Method:
boolean noneMatch(DoublePredicate predicate)
This terminal operation returns whether no elements of this stream match the provided predicate. It may not evaluate the predicate on all elements if not necessary for determining the result, hence, it is a short circuiting operation. If the stream is empty then true is returned and the predicate is not evaluated.
Examples
 package com.logicbig.example.doublestream;
import java.util.stream.DoubleStream;
public class NoneMatchExample {
public static void main(String... args) {
DoubleStream ds = DoubleStream.of(1.0, 1.2, 2.0, 2.4, 3.0);
boolean b = ds.noneMatch(d -> d == 2.5);
System.out.println(b);
}
}
Outputtrue
package com.logicbig.example.doublestream;
import java.util.stream.DoubleStream;
public class NoneMatchExample2 {
public static void main(String... args) {
boolean b = DoubleStream.empty()
.noneMatch(d -> false);
System.out.println(b);
}
}
Outputtrue
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