In this part of code:
System.out.println("Alunos aprovados:");
String[] aprovados = {"d", "a", "c", "b"};
List<String> list = new ArrayList();
for (int i = 0; i < aprovados.length; i++) {
if (aprovados[i] != null) {
list.add(aprovados[i]);
}
}
aprovados = list.toArray(new String[list.size()]);
Arrays.sort(aprovados);
System.out.println(Arrays.asList(aprovados));
An example result of System.out.println is:
[a, b, c, d]
How could I modify the code above if I want a result like below?
a
b
c
d
Or, at least:
a,
b,
c,
d
Iterate through the elements, printing each one individually.
for (String element : list) {
System.out.println(element);
}
Alternatively, Java 8 syntax offers a nice shorthand to do the same thing with a method reference
list.forEach(System.out::println);
or a lambda
list.forEach(t -> System.out.println(t));
If one wants to display each element in the same line, without those brackets:
public static void main(String[] args) {
Set<String> stringSet = new LinkedHashSet<>();
stringSet.add("1");
stringSet.add("2");
stringSet.add("3");
stringSet.add("4");
stringSet.add("5");
int i = 0;
for (String value : stringSet) {
if (i < stringSet.size()-1) {
System.out.print(value + ",");
} else {
System.out.print(value);
}
i++;
}
}
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