list.stream().forEach_list stream foreach

        People people1 = new People(1, "Ligs", true);
        People people2 = new People(2, "Songzx", false);
        People people3 = new People(3, "Jinzg", true);
        People people4 = new People(4, "Liuzx", false);
        People people5 = new People(5, "Hedx", true);
        People people6 = new People(6, "Quansm", false);
        People people7 = new People(7, "Liangsz", true);
        People people8 = new People(8, "Chisz", true);
        ArrayList<People> list = new ArrayList<People>() {{
            add(people1);
            add(people2);
            add(people3);
            add(people4);
            add(people5);
            add(people6);
            add(people7);
            add(people8);
        }};
        System.out.println("======遍历=====");
        list.stream().forEach(item -> {
            System.out.println(item);
        });
        System.out.println("==============");
        System.out.println(list.stream().filter(People::getSex).collect(Collectors.toList()));
        //[People{id=1, name='Ligs', sex=true}, People{id=3, name='Jinzg', sex=true}, People{id=5, name='Hedx', sex=true}, People{id=7, name='Liangsz', sex=true}, People{id=8, name='Chisz', sex=true}]
        //过滤掉sex为false值的对象
        System.out.println(list.stream().map(People::getSex).collect(Collectors.toList()));
        //[true, false, true, false, true, false, true, true]
        //获取list中sex属性的集合
        list.stream().forEach(item ->{
            System.out.println(item);
        });
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======遍历=====
People{id=1, name='Ligs', sex=true}
People{id=2, name='Songzx', sex=false}
People{id=3, name='Jinzg', sex=true}
People{id=4, name='Liuzx', sex=false}
People{id=5, name='Hedx', sex=true}
People{id=6, name='Quansm', sex=false}
People{id=7, name='Liangsz', sex=true}
People{id=8, name='Chisz', sex=true}
==============
[People{id=1, name='Ligs', sex=true}, People{id=3, name='Jinzg', sex=true}, People{id=5, name='Hedx', sex=true}, People{id=7, name='Liangsz', sex=true}, People{id=8, name='Chisz', sex=true}]
[true, false, true, false, true, false, true, true]
People{id=1, name='Ligs', sex=true}
People{id=2, name='Songzx', sex=false}
People{id=3, name='Jinzg', sex=true}
People{id=4, name='Liuzx', sex=false}
People{id=5, name='Hedx', sex=true}
People{id=6, name='Quansm', sex=false}
People{id=7, name='Liangsz', sex=true}
People{id=8, name='Chisz', sex=true}

Process finished with exit code 0

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