diff --git a/core-java-8/src/main/java/com/baeldung/java_8_features/Car.java b/core-java-8/src/main/java/com/baeldung/java_8_features/Car.java new file mode 100644 index 0000000000..139475bc25 --- /dev/null +++ b/core-java-8/src/main/java/com/baeldung/java_8_features/Car.java @@ -0,0 +1,31 @@ +package com.baeldung.java_8_features; + +public class Car { + + private String model; + private int topSpeed; + + public Car(String model, int topSpeed) { + super(); + this.model = model; + this.topSpeed = topSpeed; + } + + public String getModel() { + return model; + } + + public void setModel(String model) { + this.model = model; + } + + public int getTopSpeed() { + return topSpeed; + } + + public void setTopSpeed(int topSpeed) { + this.topSpeed = topSpeed; + } + + +} diff --git a/core-java-8/src/test/java/com/baeldung/java8/Java8MaxMinUnitTest.java b/core-java-8/src/test/java/com/baeldung/java8/Java8MaxMinUnitTest.java index 4979338452..55caeeba5e 100644 --- a/core-java-8/src/test/java/com/baeldung/java8/Java8MaxMinUnitTest.java +++ b/core-java-8/src/test/java/com/baeldung/java8/Java8MaxMinUnitTest.java @@ -1,6 +1,7 @@ package com.baeldung.java8; import com.baeldung.java_8_features.Person; +import com.baeldung.java_8_features.Car; import org.junit.Test; import java.util.Arrays; @@ -44,4 +45,29 @@ public class Java8MaxMinUnitTest { assertEquals("Should be Alex", alex, minByAge); } + @Test + public void whenArrayIsOfIntegerThenMinCanBeDoneUsingIntegerComparator() { + int[] integers = new int[] { 20, 98, 12, 7, 35 }; + + int min = Arrays.stream(integers) + .min() + .getAsInt(); + + assertEquals(7, min); + } + + @Test + public void whenArrayIsOfPersonObjectThenMaxCanBeDoneUsingCustomComparatorThroughLambda() { + final Car porsche = new Car("Porsche 959", 319); + final Car ferrari = new Car("Ferrari 288 GTO", 303); + final Car bugatti = new Car("Bugatti Veyron 16.4 Super Sport", 415); + final Car mcLaren = new Car("McLaren F1", 355); + final Car[] fastCars = { porsche, ferrari, bugatti, mcLaren }; + + final Car maxBySpeed = Arrays.stream(fastCars) + .max(Comparator.comparing(Car::getTopSpeed)) + .orElseThrow(NoSuchElementException::new); + + assertEquals(bugatti, maxBySpeed); + } }