Example usage for java.util.stream Collectors toList

Introduction

In this page you can find the example usage for java.util.stream Collectors toList.

Prototype

public static <T> Collector<T, ?, List<T>> toList()

Source Link

Document

Returns a Collector that accumulates the input elements into a new List .

Usage

From source file:Main.java

public static void main(String[] args) {
    Stream<String> s = Stream.of("a", "b", "c");

    List<String> names = s.collect(Collectors.toList());

    System.out.println(names);//from   w w  w. jav  a 2 s.  c  om
}

From source file:Main.java

public static void main(String[] args) {
    Integer[] numbers = { 1, 2, 3, 4 };
    Stream<Integer> arrayStreams2 = Arrays.stream(numbers);

    System.out.println(arrayStreams2.collect(Collectors.toList()));

}

From source file:Main.java

public static void main(String[] args) {
    List<String> names = Employee.persons().stream().map(Employee::getName).collect(Collectors.toList());
    System.out.println(names);/*from w ww  . j a  v  a2 s  .c  o m*/

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    // map/*from  www  .  j  a  v a 2 s. co m*/
    List<String> words = Arrays.asList("Hello", "World");
    List<Integer> wordLengths = words.stream().map(String::length).collect(Collectors.toList());
    System.out.println(wordLengths);

}

From source file:Main.java

public static void main(String[] args) {
    List<String> _names = Arrays.asList("Bob", "Tom", "Jeff", "Scott", "Jennifer", "Steve");

    List<String> greetings = _names.stream().map(name -> "Hello " + name).collect(Collectors.toList());
    System.out.println(greetings);

}

From source file:Main.java

public static void main(String args[]) {
    List<Person> people = Arrays.asList(new Person("B", 25, "Main Street"), new Person("A", 27, "Off Street"));
    List<String> listNames = people.stream().map(u -> u.getName()).collect(Collectors.toList());
    System.out.println(listNames);
}

From source file:Main.java

public static void main(String[] args) {
    List<Trade> trades = TradeUtil.createTrades();

    List<Integer> list = trades.stream().map(t -> t.getQuantity()).collect(Collectors.toList());
    System.out.println("Collect List: " + list);
}

From source file:Main.java

public static void main(String[] args) {
    List<String> names = Arrays.asList("Chris", "HTML", "XML", "CSS");

    Stream<String> s = names.stream().filter(name -> name.startsWith("C"));

    System.out.println(s.collect(Collectors.toList()));
}

From source file:Main.java

public static void main(String[] args) {
    List<String> names = Employee.persons().stream().map(Employee::getName).collect(
            Collectors.collectingAndThen(Collectors.toList(), result -> Collections.unmodifiableList(result)));
    System.out.println(names);//from   w  w w  .j  a  va 2 s  . c  o m
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    List<String> argList = Arrays.asList("help", "v");

    Predicate<String> isHelp = (s) -> s.matches("(h|help)");

    argList = argList.stream().filter(isHelp.negate()).collect(Collectors.toList());

    System.out.println(argList);/* ww  w  .ja v a  2 s  . c  om*/
}