本文主要是介绍java8快速筛选list,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
public class StreamTest {
public static void main(String[] args) {
List<Student> allList = new ArrayList<Student>();
Student st1 = new Student("小王",26,1,"计算机");
allList.add(st1);
Student st2 = new Student("小张",21,1,"电气");
allList.add(st2);
Student st3 = new Student("小红",22,1,"人文");
allList.add(st3);
Student st4 = new Student("小李",23,1,"计算机");
allList.add(st4);
System.out.println("**************************目的:只取专业为计算机行业的集合*************************");
// allList = allList.stream().filter(Student -> Student.getProfessional().equals("计算机")).collect(Collectors.toList());
// allList.forEach(Student -> {
// System.out.println(Student.getName());
// });
System.out.println("**************************目的:取专业为计算机和人文专业的集合*************************");
List<String> str=new ArrayList<>();
str.add("计算机");
str.add("人文");
allList = allList.stream().filter(Student -> str.contains(Student.getProfessional())).collect(Collectors.toList());
allList.forEach(Student -> {
System.out.println(Student.getName());
});
}
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