责任链模式

public class staff {
private String name;
private Integer days;
private String reason;

public staff() {}

public staff(String name, Integer days, String reason) {
super();
this.name = name;
this.days = days;
this.reason = reason;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getDays() {
return days;
}
public void setDays(Integer days) {
this.days = days;
}
public String getReason() {
return reason;
}
public void setReason(String reason) {
this.reason = reason;
}

}

public abstract class leader {
protected String name;
protected leader ld;

public leader(String name) {
super();
this.name = name;
}

public void setLd(leader ld) {
this.ld = ld;
}
public leader getLd() {
return ld;
}

abstract void approvd(staff stf);
}

public class Director extends leader{
public Director(String name) {
super(name);
}


@Override
void approvd(staff stf) {
if(stf.getDays() <= 1) {
System.out.println("组长审批通过"+" 请假人"+stf.getName()+" 请假天数"+stf.getDays()+" 请假事由"+stf.getReason());
}else if(this.getLd() != null){
this.ld.approvd(stf);
}
}
}

public class Manager  extends leader{
public Manager(String name) {
super(name);
}


@Override
void approvd(staff stf) {
if(stf.getDays() < 10) {
System.out.println("经理审批通过"+" 请假人"+stf.getName()+" 请假天数"+stf.getDays()+" 请假事由"+stf.getReason());
}else if(this.getLd() != null){
this.ld.approvd(stf);
}
}
}

public class Chairman extends leader{
public Chairman(String name) {
super(name);
}

@Override
void approvd(staff stf) {
System.out.println("董事长审批通过"+" 请假人"+stf.getName()+" 请假天数"+stf.getDays()+" 请假事由"+stf.getReason());
}
}

public class client {
public static void main(String[] args) {
staff stf = new staff("小菜",31,"回家种地");
Director dir = new Director("张组长");
Manager  mg = new Manager("刘经理");
Chairman cm = new Chairman("乔董事");
dir.setLd(mg);
mg.setLd(cm);
dir.approvd(stf);
}
}