Here are the examples of the java api class java.util.function.DoubleToIntFunction taken from open source projects.
1. CheckedFunctionTest#testCheckedDoubleToIntFunctionWithCustomHandler()
Project: jOOL
File: CheckedFunctionTest.java
File: CheckedFunctionTest.java
@Test public void testCheckedDoubleToIntFunctionWithCustomHandler() { final CheckedDoubleToIntFunction doubleToIntFunction = d -> { throw new Exception("" + d); }; final Consumer<Throwable> handler = e -> { throw new IllegalStateException(e); }; DoubleToIntFunction test = Unchecked.doubleToIntFunction(doubleToIntFunction, handler); DoubleToIntFunction alias = CheckedDoubleToIntFunction.unchecked(doubleToIntFunction, handler); assertDoubleToIntFunction(test, IllegalStateException.class); assertDoubleToIntFunction(alias, IllegalStateException.class); }
2. CheckedFunctionTest#testCheckedDoubleToIntFunction()
Project: jOOL
File: CheckedFunctionTest.java
File: CheckedFunctionTest.java
@Test public void testCheckedDoubleToIntFunction() { final CheckedDoubleToIntFunction doubleToIntFunction = d -> { throw new Exception("" + d); }; DoubleToIntFunction test = Unchecked.doubleToIntFunction(doubleToIntFunction); DoubleToIntFunction alias = CheckedDoubleToIntFunction.unchecked(doubleToIntFunction); assertDoubleToIntFunction(test, UncheckedException.class); assertDoubleToIntFunction(alias, UncheckedException.class); }
3. DoubleStreamExTest#testMinMax()
Project: streamex
File: DoubleStreamExTest.java
File: DoubleStreamExTest.java
@Test public void testMinMax() { checkEmpty( s -> s.maxBy(Double::valueOf), s -> s.maxByInt( x -> (int) x), s -> s.maxByLong( x -> (long) x), s -> s.maxByDouble( x -> x), s -> s.minBy(Double::valueOf), s -> s.minByInt( x -> (int) x), s -> s.minByLong( x -> (long) x), s -> s.minByDouble( x -> x)); assertEquals(9, IntStreamEx.range(5, 12).asDoubleStream().max(( a, b) -> String.valueOf(a).compareTo(String.valueOf(b))).getAsDouble(), 0.0); assertEquals(10, IntStreamEx.range(5, 12).asDoubleStream().min(( a, b) -> String.valueOf(a).compareTo(String.valueOf(b))).getAsDouble(), 0.0); assertEquals(9, IntStreamEx.range(5, 12).asDoubleStream().maxBy(String::valueOf).getAsDouble(), 0.0); assertEquals(10, IntStreamEx.range(5, 12).asDoubleStream().minBy(String::valueOf).getAsDouble(), 0.0); assertEquals(5, IntStreamEx.range(5, 12).asDoubleStream().maxByDouble( x -> 1.0 / x).getAsDouble(), 0.0); assertEquals(11, IntStreamEx.range(5, 12).asDoubleStream().minByDouble( x -> 1.0 / x).getAsDouble(), 0.0); assertEquals(29.0, DoubleStreamEx.of(15, 8, 31, 47, 19, 29).maxByInt( x -> (int) (x % 10 * 10 + x / 10)).getAsDouble(), 0.0); assertEquals(31.0, DoubleStreamEx.of(15, 8, 31, 47, 19, 29).minByInt( x -> (int) (x % 10 * 10 + x / 10)).getAsDouble(), 0.0); assertEquals(29.0, DoubleStreamEx.of(15, 8, 31, 47, 19, 29).maxByLong( x -> (long) (x % 10 * 10 + x / 10)).getAsDouble(), 0.0); assertEquals(31.0, DoubleStreamEx.of(15, 8, 31, 47, 19, 29).minByLong( x -> (long) (x % 10 * 10 + x / 10)).getAsDouble(), 0.0); Supplier<DoubleStreamEx> s = () -> DoubleStreamEx.of(1, 50, 120, 35, 130, 12, 0); DoubleToIntFunction intKey = x -> String.valueOf(x).length(); DoubleToLongFunction longKey = x -> String.valueOf(x).length(); DoubleUnaryOperator doubleKey = x -> String.valueOf(x).length(); DoubleFunction<Integer> objKey = x -> String.valueOf(x).length(); List<Function<DoubleStreamEx, OptionalDouble>> minFns = Arrays.asList( is -> is.minByInt(intKey), is -> is.minByLong(longKey), is -> is.minByDouble(doubleKey), is -> is.minBy(objKey)); List<Function<DoubleStreamEx, OptionalDouble>> maxFns = Arrays.asList( is -> is.maxByInt(intKey), is -> is.maxByLong(longKey), is -> is.maxByDouble(doubleKey), is -> is.maxBy(objKey)); minFns.forEach( fn -> assertEquals(1, fn.apply(s.get()).getAsDouble(), 0.0)); minFns.forEach( fn -> assertEquals(1, fn.apply(s.get().parallel()).getAsDouble(), 0.0)); maxFns.forEach( fn -> assertEquals(120, fn.apply(s.get()).getAsDouble(), 0.0)); maxFns.forEach( fn -> assertEquals(120, fn.apply(s.get().parallel()).getAsDouble(), 0.0)); }