Adding lines when printing treeset

Question

I have this simple treeset.

 TreeSet<Fruit> treeSet = new TreeSet();
    try {
        treeSet.add(pear);
        treeSet.add(apple);
        treeSet.add(orange);
        System.out.println(treeSet);
    } catch (Exception e) {
        System.out.println(e.getMessage());
    }

when this compiles it prints it all out on the same line. How can i make it so it prints each object out on a different line?

it's better to use `TreeSet treeSet = new TreeSet<>();` rather than `TreeSet treeSet = new TreeSet();` — Ousmane D., Dec 26 '17 at 19:36

score 2 · Answer 1 · answered Dec 26 '17 at 19:32

Iterate over the Set and print each element separatelly:

TreeSet<Fruit> treeSet = new TreeSet();
treeSet.add(pear);
treeSet.add(apple);
treeSet.add(orange);
for (Fruit fruit : treeSet) {
    System.out.println(fruit);
}

or (Java 8):

treeSet.forEach(System.out::println);

score 1 · Accepted Answer · answered Dec 26 '17 at 19:33

1

Print it in a loop

for(Fruit f: treeSet){
    System.out.println(f);
  }

answered Dec 26 '17 at 19:33

isaace

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Adding lines when printing treeset

2 Answers2