Arrays Class

Arrays don't have a sort method, and can't be passed to methods like Collections.sort because they aren't List implementations.

String[] animalArray = { "Cat",
    "catfish",
    "caterpillar",
    "Frog",
    "Dog",
    "fruit bat",
    "Giraffe" };

for (String animal : animalArray) {
  System.out.println(animal);
}

Cat
catfish
caterpillar
Frog
Dog
fruit bat
Giraffe

The java.util.Arrays utility class defines sort methods that take arrays of any type, including primitives and references.

Arrays.sort(animalArray);
for (String animal : animalArray) {
  System.out.println(animal);
}

Cat
Dog
Frog
Giraffe
caterpillar
catfish
fruit bat

• Arrays includes sort methods that take a Comparator for custom sorting.

The Arrays class provides a number of other methods for convenient array manipulation.

System.out.println(animalArray);
// [Ljava.lang.String;@3d4eac69
System.out.println(Arrays.deepToString(animalArray));
// [Cat, Dog, Frog, Giraffe, caterpillar, catfish, fruit bat]

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