62,621
社区成员
发帖
与我相关
我的任务
分享求大神解答
Java判断多个时间段是否重叠
时间格式
判断这个集合里面有没有重叠时间段
时间格式
List<String> list = new ArrayList<String>();
list.add("08:00-09:00");
list.add("09:00-12:00");
list.add("13:00-16:30");
list.add("16:00-17:00");
list.add("18:00-20:00");
判断这个集合里面有没有重叠时间段
...全文
请发表友善的回复…
发表回复
qq_39936465 2019-07-24
- 打赏
- 举报
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class test4 {
public static void main(String[] args) {
// TODO Auto-generated method stub
List<String> list=new ArrayList<String>();
list.add("08:00-09:00");
list.add("08:00-12:00");
list.add("13:00-16:00");
list.add("16:00-17:00");
list.add("18:00-20:00");
List<Timezone> listtime=new ArrayList<Timezone>();
SimpleDateFormat sdf=new SimpleDateFormat("HH:mm");
for(String i:list) {
String[] s=i.split("-");
try {
Timezone tz=new Timezone(sdf.parse(s[0]),sdf.parse(s[1]));
listtime.add(tz);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
for(int i=0;i<listtime.size()-1;i++) {
for(int j=i+1;j<listtime.size();j++) {
comparetime(listtime.get(i), listtime.get(j));
}
}
}
static void comparetime(Timezone t1,Timezone t2) {
if(t2.getStart().before(t1.getEnd())&&t2.getEnd().after(t1.getEnd())) {
System.out.println(t1+"与"+t2+"有重叠！");
}else if(t2.getStart().before(t1.getStart())&&t2.getEnd().after(t1.getStart())){
System.out.println(t1+"与"+t2+"有重叠！");
}
}
}
class Timezone{
private Date start,end;
private SimpleDateFormat sdf=new SimpleDateFormat("HH:mm");
/**
* @param start
* @param end
*/
public Timezone(Date start, Date end) {
super();
this.start = start;
this.end = end;
}
public Date getStart() {
return start;
}
public void setStart(Date start) {
this.start = start;
}
public Date getEnd() {
return end;
}
public void setEnd(Date end) {
this.end = end;
}
@Override
public String toString() {
return "时间段" + sdf.format(start) + "-" +sdf.format(end);
}
}
时间段08:00-09:00与时间段08:00-12:00有重叠！
牧歌ing 2019-07-24
- 打赏
- 举报
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class test4 {
public static void main(String[] args) {
// TODO Auto-generated method stub
List<String> list=new ArrayList<String>();
list.add("08:00-09:00");
list.add("08:00-12:00");
list.add("13:00-16:00");
list.add("16:00-17:00");
list.add("18:00-20:00");
List<Timezone> listtime=new ArrayList<Timezone>();
SimpleDateFormat sdf=new SimpleDateFormat("HH:mm");
for(String i:list) {
String[] s=i.split("-");
try {
Timezone tz=new Timezone(sdf.parse(s[0]),sdf.parse(s[1]));
listtime.add(tz);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
for(int i=0;i<listtime.size()-1;i++) {
for(int j=i+1;j<listtime.size();j++) {
comparetime(listtime.get(i), listtime.get(j));
}
}
}
static void comparetime(Timezone t1,Timezone t2) {
if(t2.getStart().before(t1.getEnd())&&t2.getEnd().after(t1.getEnd())) {
System.out.println(t1+"与"+t2+"有重叠！");
}else if(t2.getStart().before(t1.getStart())&&t2.getEnd().after(t1.getStart())){
System.out.println(t1+"与"+t2+"有重叠！");
}
}
}
class Timezone{
private Date start,end;
private SimpleDateFormat sdf=new SimpleDateFormat("HH:mm");
/**
* @param start
* @param end
*/
public Timezone(Date start, Date end) {
super();
this.start = start;
this.end = end;
}
public Date getStart() {
return start;
}
public void setStart(Date start) {
this.start = start;
}
public Date getEnd() {
return end;
}
public void setEnd(Date end) {
this.end = end;
}
@Override
public String toString() {
return "时间段" + sdf.format(start) + "-" +sdf.format(end);
}
}
运行结果：
时间段08:00-09:00与时间段08:00-12:00有重叠！
[/quote]
这个可以
L2506044793 2019-07-24
- 打赏
- 举报
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class test4 {
public static void main(String[] args) {
// TODO Auto-generated method stub
List<String> list=new ArrayList<String>();
list.add("08:00-09:00");
list.add("08:00-12:00");
list.add("13:00-16:00");
list.add("16:00-17:00");
list.add("18:00-20:00");
List<Timezone> listtime=new ArrayList<Timezone>();
SimpleDateFormat sdf=new SimpleDateFormat("HH:mm");
for(String i:list) {
String[] s=i.split("-");
try {
Timezone tz=new Timezone(sdf.parse(s[0]),sdf.parse(s[1]));
listtime.add(tz);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
for(int i=0;i<listtime.size()-1;i++) {
for(int j=i+1;j<listtime.size();j++) {
comparetime(listtime.get(i), listtime.get(j));
}
}
}
static void comparetime(Timezone t1,Timezone t2) {
if(t2.getStart().before(t1.getEnd())&&t2.getEnd().after(t1.getEnd())) {
System.out.println(t1+"与"+t2+"有重叠！");
}else if(t2.getStart().before(t1.getStart())&&t2.getEnd().after(t1.getStart())){
System.out.println(t1+"与"+t2+"有重叠！");
}
}
}
class Timezone{
private Date start,end;
private SimpleDateFormat sdf=new SimpleDateFormat("HH:mm");
/**
* @param start
* @param end
*/
public Timezone(Date start, Date end) {
super();
this.start = start;
this.end = end;
}
public Date getStart() {
return start;
}
public void setStart(Date start) {
this.start = start;
}
public Date getEnd() {
return end;
}
public void setEnd(Date end) {
this.end = end;
}
@Override
public String toString() {
return "时间段" + sdf.format(start) + "-" +sdf.format(end);
}
}
运行结果：
时间段08:00-09:00与时间段08:00-12:00有重叠！
[/quote]
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class test4 {
public static void main(String[] args) {
// TODO Auto-generated method stub
List<String> list=new ArrayList<String>();
list.add("08:00-09:00");
list.add("08:00-12:00");
list.add("13:00-16:00");
list.add("16:00-17:00");
list.add("18:00-20:00");
List<Timezone> listtime=new ArrayList<Timezone>();
SimpleDateFormat sdf=new SimpleDateFormat("HH:mm");
for(String i:list) {
String[] s=i.split("-");
try {
Timezone tz=new Timezone(sdf.parse(s[0]),sdf.parse(s[1]));
listtime.add(tz);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
for(int i=0;i<listtime.size()-1;i++) {
for(int j=i+1;j<listtime.size();j++) {
comparetime(listtime.get(i), listtime.get(j));
}
}
}
static void comparetime(Timezone t1,Timezone t2) {
if(t2.getStart().before(t1.getEnd())&&t2.getEnd().after(t1.getEnd())) {
System.out.println(t1+"与"+t2+"有重叠！");
}else if(t2.getStart().before(t1.getStart())&&t2.getEnd().after(t1.getStart())){
System.out.println(t1+"与"+t2+"有重叠！");
}
}
}
class Timezone{
private Date start,end;
private SimpleDateFormat sdf=new SimpleDateFormat("HH:mm");
/**
* @param start
* @param end
*/
public Timezone(Date start, Date end) {
super();
this.start = start;
this.end = end;
}
public Date getStart() {
return start;
}
public void setStart(Date start) {
this.start = start;
}
public Date getEnd() {
return end;
}
public void setEnd(Date end) {
this.end = end;
}
@Override
public String toString() {
return "时间段" + sdf.format(start) + "-" +sdf.format(end);
}
}
运行结果：
时间段08:00-09:00与时间段08:00-12:00有重叠！
[/quote]问题已经解决，十分感谢
十八道胡同 2019-07-23
- 打赏
- 举报
初步的想法，每个值都分成2个DateTime类型，然后双层循环判断 是否重叠
