5.java8流的使用 stream的筛选与切片

最新推荐文章于 2023-04-13 11:53:24 发布

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最新推荐文章于 2023-04-13 11:53:24 发布 · 306 阅读

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文章标签：

#java #开发语言 #后端

这篇博客通过一个Employee2的bean类展示了如何使用Java Stream API进行数据处理。包括allMatch、anyMatch、noneMatch等方法检查员工状态，以及findFirst和findAny找到特定条件的员工。同时，通过sorted和filter方法找到最低和最高工资的员工。

1.关键代码

1.Employee2的bean类

/**
 * 创建日期：2021/10/29 14:01
 *
 * @author tony.sun
 * 类说明：
 */

public class Employee2 {
   
   
    private String name;
    private Integer age;
    private Double salary;
    private Status Status;

    public Employee2(String name, Integer age, Double salary, Employee2.Status status) {
   
   
        this.name = name;
        this.age = age;
        this.salary = salary;
        Status = status;
    }

    /**
     * 闲着，忙碌，休假
     */
    public enum Status{
   
   
        FREE,
        BUSY,
        VOCATION;
    }

    public String getName() {
   
   
        return name;
    }

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

    public Integer getAge() {
   
   
        return age;
    }

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

    public Double getSalary() {
   
   
        return salary;
    }

    public void setSalary(Double salary) {
   
   
        this.salary = salary;
    }

    public Employee2.Status getStatus() {
   
   
        return Status;
    }

    public void setStatus(Employee2.Status status) {
   
   
        Status = status;
    }

    @Override
    public String toString() {
   
   
        return "Employee2{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", salary=" + salary +
                ", Status=" + Status +
                '}';
    }

    @Override
    public boolean equals(Object o) {
   
   
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Employee2 employee2 = (Employee2) o;
        return Objects.equals(name, employee2.name) &&
                Objects.