Java8 新特性之Stream

1、Student

package com.elk.log.myTest;


public class Student implements Comparable<Student> {

    /** 学号 */
    private long id;

    private String name;

    private int age;

    /** 年级 */
    private int grade;

    /** 专业 */
    private String major;

    /** 学校 */
    private String school;

    // 省略getter和setter


    public Student(long id, String name, int age, int grade, String major, String school) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.grade = grade;
        this.major = major;
        this.school = school;
    }

    public long getId() {
        return id;
    }

    public void setId(long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public int getGrade() {
        return grade;
    }

    public void setGrade(int grade) {
        this.grade = grade;
    }

    public String getMajor() {
        return major;
    }

    public void setMajor(String major) {
        this.major = major;
    }

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }




    @Override
    public String toString() {
        return "Student{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", age=" + age +
                ", grade=" + grade +
                ", major='" + major + '\'' +
                ", school='" + school + '\'' +
                '}';
    }

    @Override
    public int compareTo(Student o) {
        return (int) (this.id-o.id);
    }
}

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