过滤、限量

package All.D14.Steam_;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class Demon02 {
static void printEach(String message, List list){
System.out.print(message);
list.stream().forEach(n->{
System.out.println(n+"");
});
System.out.println();
}

public static void main(String[] args) {
    List<Integer>list=new ArrayList<>();
    list.add(1);
    list.add(2);
    list.add(2);
    list.add(3);
    list.add(3);
    printEach("去重前：",list);
    Stream<Integer>stream=list.stream();
    stream=stream.distinct();
    List<Integer>result = stream.collect(Collectors.toList());
    printEach("去重后：",result);
}

}