JAVA JSON identical keys: how to search? [on hold]
up vote
-2
down vote
favorite
I am getting a JSON response from an API, that has the following format:
{
"timestamp":1542790613,
"price":4608.4564197580685
},
{
"timestamp":1542790614,
"price":4608.456348092037
},
{
"timestamp":1542790615,
"price":4608.358785472172
},
{
"timestamp":1542790616,
"price":4608.420295035769
},
{
"timestamp":1542790617,
"price":4608.420058274378
}
Now, I've converted into a string (can't paste the code here, company policy), but the timestamp shows like 1.54278925E9 instead of showing all the numbers.
What I'm trying to do is, get a timestamp (unixtime) parameter from somewhere else, search it in the JSON and return the price for that timestamp.
I'm rather new to Java, so, please, have mercy!
java json search indexing
edited yesterday
Nesku
14819
asked yesterday
Ionut Apostu
1
put on hold as off-topic by Seelenvirtuose, Andrea, Werner Henze, Mickael Maison, EdChum yesterday
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example." – Andrea, Werner Henze, Mickael Maison, EdChum
If this question can be reworded to fit the rules in the help center, please edit the question.
|
show 1 more comment
up vote
-2
down vote
favorite
I am getting a JSON response from an API, that has the following format:
{
"timestamp":1542790613,
"price":4608.4564197580685
},
{
"timestamp":1542790614,
"price":4608.456348092037
},
{
"timestamp":1542790615,
"price":4608.358785472172
},
{
"timestamp":1542790616,
"price":4608.420295035769
},
{
"timestamp":1542790617,
"price":4608.420058274378
}
Now, I've converted into a string (can't paste the code here, company policy), but the timestamp shows like 1.54278925E9 instead of showing all the numbers.
What I'm trying to do is, get a timestamp (unixtime) parameter from somewhere else, search it in the JSON and return the price for that timestamp.
I'm rather new to Java, so, please, have mercy!
java json search indexing
edited yesterday
Nesku
14819
asked yesterday
Ionut Apostu
1
put on hold as off-topic by Seelenvirtuose, Andrea, Werner Henze, Mickael Maison, EdChum yesterday
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example." – Andrea, Werner Henze, Mickael Maison, EdChum
If this question can be reworded to fit the rules in the help center, please edit the question.
Just for clarification: these objects are in an array/list right? If so, please edit the question to add the [ ] brackets
– Ivo Vidovic
yesterday
how are you converting it to string?
– Nawnit Sen
yesterday
I don't get it. You have string with JSON and convert it to string. Why?
– talex
yesterday
These objects come under this form: [{ "timestamp": 1542790613, "price": 4608.4564197580685 }, { "timestamp": 1542790614, "price": 4608.456348092037 }, { "timestamp": 1542790615, "price": 4608.358785472172 }, { "timestamp": 1542790616, "price": 4608.420295035769 }, { "timestamp": 1542790617, "price": 4608.420058274378 }]
– Ionut Apostu
yesterday
1
Title doesn't seem to reflect the question - more about type conversion than search.
– JonathanS
yesterday
|
show 1 more comment
up vote
-2
down vote
favorite
up vote
-2
down vote
favorite
I am getting a JSON response from an API, that has the following format:
{
"timestamp":1542790613,
"price":4608.4564197580685
},
{
"timestamp":1542790614,
"price":4608.456348092037
},
{
"timestamp":1542790615,
"price":4608.358785472172
},
{
"timestamp":1542790616,
"price":4608.420295035769
},
{
"timestamp":1542790617,
"price":4608.420058274378
}
Now, I've converted into a string (can't paste the code here, company policy), but the timestamp shows like 1.54278925E9 instead of showing all the numbers.
What I'm trying to do is, get a timestamp (unixtime) parameter from somewhere else, search it in the JSON and return the price for that timestamp.
I'm rather new to Java, so, please, have mercy!
java json search indexing
edited yesterday
Nesku
14819
asked yesterday
Ionut Apostu
1
I am getting a JSON response from an API, that has the following format:
{
"timestamp":1542790613,
"price":4608.4564197580685
},
{
"timestamp":1542790614,
"price":4608.456348092037
},
{
"timestamp":1542790615,
"price":4608.358785472172
},
{
"timestamp":1542790616,
"price":4608.420295035769
},
{
"timestamp":1542790617,
"price":4608.420058274378
}
Now, I've converted into a string (can't paste the code here, company policy), but the timestamp shows like 1.54278925E9 instead of showing all the numbers.
What I'm trying to do is, get a timestamp (unixtime) parameter from somewhere else, search it in the JSON and return the price for that timestamp.
I'm rather new to Java, so, please, have mercy!
java json search indexing
java json search indexing
edited yesterday
Nesku
14819
asked yesterday
Ionut Apostu
1
edited yesterday
Nesku
14819
asked yesterday
Ionut Apostu
1
edited yesterday
Nesku
14819
edited yesterday
Nesku
14819
edited yesterday
Nesku
14819
14819
asked yesterday
Ionut Apostu
1
asked yesterday
Ionut Apostu
1
asked yesterday
Ionut Apostu
1
1
put on hold as off-topic by Seelenvirtuose, Andrea, Werner Henze, Mickael Maison, EdChum yesterday
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example." – Andrea, Werner Henze, Mickael Maison, EdChum
If this question can be reworded to fit the rules in the help center, please edit the question.
put on hold as off-topic by Seelenvirtuose, Andrea, Werner Henze, Mickael Maison, EdChum yesterday
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example." – Andrea, Werner Henze, Mickael Maison, EdChum
If this question can be reworded to fit the rules in the help center, please edit the question.
Just for clarification: these objects are in an array/list right? If so, please edit the question to add the [ ] brackets
– Ivo Vidovic
yesterday
how are you converting it to string?
– Nawnit Sen
yesterday
I don't get it. You have string with JSON and convert it to string. Why?
– talex
yesterday
These objects come under this form: [{ "timestamp": 1542790613, "price": 4608.4564197580685 }, { "timestamp": 1542790614, "price": 4608.456348092037 }, { "timestamp": 1542790615, "price": 4608.358785472172 }, { "timestamp": 1542790616, "price": 4608.420295035769 }, { "timestamp": 1542790617, "price": 4608.420058274378 }]
– Ionut Apostu
yesterday
1
Title doesn't seem to reflect the question - more about type conversion than search.
– JonathanS
yesterday
|
show 1 more comment
Just for clarification: these objects are in an array/list right? If so, please edit the question to add the [ ] brackets
– Ivo Vidovic
yesterday
how are you converting it to string?
– Nawnit Sen
yesterday
I don't get it. You have string with JSON and convert it to string. Why?
– talex
yesterday
These objects come under this form: [{ "timestamp": 1542790613, "price": 4608.4564197580685 }, { "timestamp": 1542790614, "price": 4608.456348092037 }, { "timestamp": 1542790615, "price": 4608.358785472172 }, { "timestamp": 1542790616, "price": 4608.420295035769 }, { "timestamp": 1542790617, "price": 4608.420058274378 }]
– Ionut Apostu
yesterday
1
Title doesn't seem to reflect the question - more about type conversion than search.
– JonathanS
yesterday
Just for clarification: these objects are in an array/list right? If so, please edit the question to add the [ ] brackets
– Ivo Vidovic
yesterday
Just for clarification: these objects are in an array/list right? If so, please edit the question to add the [ ] brackets
– Ivo Vidovic
yesterday
how are you converting it to string?
– Nawnit Sen
yesterday
how are you converting it to string?
– Nawnit Sen
yesterday
I don't get it. You have string with JSON and convert it to string. Why?
– talex
yesterday
I don't get it. You have string with JSON and convert it to string. Why?
– talex
yesterday
These objects come under this form: [{ "timestamp": 1542790613, "price": 4608.4564197580685 }, { "timestamp": 1542790614, "price": 4608.456348092037 }, { "timestamp": 1542790615, "price": 4608.358785472172 }, { "timestamp": 1542790616, "price": 4608.420295035769 }, { "timestamp": 1542790617, "price": 4608.420058274378 }]
– Ionut Apostu
yesterday
These objects come under this form: [{ "timestamp": 1542790613, "price": 4608.4564197580685 }, { "timestamp": 1542790614, "price": 4608.456348092037 }, { "timestamp": 1542790615, "price": 4608.358785472172 }, { "timestamp": 1542790616, "price": 4608.420295035769 }, { "timestamp": 1542790617, "price": 4608.420058274378 }]
– Ionut Apostu
yesterday
1
1
Title doesn't seem to reflect the question - more about type conversion than search.
– JonathanS
yesterday
Title doesn't seem to reflect the question - more about type conversion than search.
– JonathanS
yesterday
|
show 1 more comment
1 Answer
1
active
oldest
votes
up vote
1
down vote
The timestamp values in the json are milliseconds since the epoch. It looks like you are reading this in and ending up with a long, then converting to a string whereby you get the exponential expression of this number. Skip the string conversion, create an Instant object using the long value. The Instant class knows how to handle this.
Instant timestamp = Instant.ofEpochMilli(timestampValueFromJson);
See https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html
Update: If you are using org.json to parse, then call jsonobj.getLong("timestamp") rather than the implicit jsonobj.get("timestamp"). The latter will return a number object so the string conversion is unnecessary.
edited yesterday
MC Emperor
7,734125387
answered yesterday
JonathanS
1838
Thank you for the suggestion, but I have to find a link between time and price and compare the time, then display the price for that time. So, maybe two arrays would be the answer. Do you mind explaining your answer with some code? How do I get all 59 timestamp values into an array?
– Ionut Apostu
yesterday
2
Don't use the obsolete date and time classes, likeDateandCalendar. Use the new Java Date and Time API available in thejava.timepackage.
– MC Emperor
yesterday
Good point, answered edited
– JonathanS
yesterday
@JonathanS That's better :-)
– MC Emperor
yesterday
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
The timestamp values in the json are milliseconds since the epoch. It looks like you are reading this in and ending up with a long, then converting to a string whereby you get the exponential expression of this number. Skip the string conversion, create an Instant object using the long value. The Instant class knows how to handle this.
Instant timestamp = Instant.ofEpochMilli(timestampValueFromJson);
See https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html
Update: If you are using org.json to parse, then call jsonobj.getLong("timestamp") rather than the implicit jsonobj.get("timestamp"). The latter will return a number object so the string conversion is unnecessary.
edited yesterday
MC Emperor
7,734125387
answered yesterday
JonathanS
1838
Thank you for the suggestion, but I have to find a link between time and price and compare the time, then display the price for that time. So, maybe two arrays would be the answer. Do you mind explaining your answer with some code? How do I get all 59 timestamp values into an array?
– Ionut Apostu
yesterday
2
Don't use the obsolete date and time classes, likeDateandCalendar. Use the new Java Date and Time API available in thejava.timepackage.
– MC Emperor
yesterday
Good point, answered edited
– JonathanS
yesterday
@JonathanS That's better :-)
– MC Emperor
yesterday
add a comment |
up vote
1
down vote
The timestamp values in the json are milliseconds since the epoch. It looks like you are reading this in and ending up with a long, then converting to a string whereby you get the exponential expression of this number. Skip the string conversion, create an Instant object using the long value. The Instant class knows how to handle this.
Instant timestamp = Instant.ofEpochMilli(timestampValueFromJson);
See https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html
Update: If you are using org.json to parse, then call jsonobj.getLong("timestamp") rather than the implicit jsonobj.get("timestamp"). The latter will return a number object so the string conversion is unnecessary.
edited yesterday
MC Emperor
7,734125387
answered yesterday
JonathanS
1838
Thank you for the suggestion, but I have to find a link between time and price and compare the time, then display the price for that time. So, maybe two arrays would be the answer. Do you mind explaining your answer with some code? How do I get all 59 timestamp values into an array?
– Ionut Apostu
yesterday
2
Don't use the obsolete date and time classes, likeDateandCalendar. Use the new Java Date and Time API available in thejava.timepackage.
– MC Emperor
yesterday
Good point, answered edited
– JonathanS
yesterday
@JonathanS That's better :-)
– MC Emperor
yesterday
add a comment |
up vote
1
down vote
up vote
1
down vote
The timestamp values in the json are milliseconds since the epoch. It looks like you are reading this in and ending up with a long, then converting to a string whereby you get the exponential expression of this number. Skip the string conversion, create an Instant object using the long value. The Instant class knows how to handle this.
Instant timestamp = Instant.ofEpochMilli(timestampValueFromJson);
See https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html
Update: If you are using org.json to parse, then call jsonobj.getLong("timestamp") rather than the implicit jsonobj.get("timestamp"). The latter will return a number object so the string conversion is unnecessary.
edited yesterday
MC Emperor
7,734125387
answered yesterday
JonathanS
1838
The timestamp values in the json are milliseconds since the epoch. It looks like you are reading this in and ending up with a long, then converting to a string whereby you get the exponential expression of this number. Skip the string conversion, create an Instant object using the long value. The Instant class knows how to handle this.
Instant timestamp = Instant.ofEpochMilli(timestampValueFromJson);
See https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html
Update: If you are using org.json to parse, then call jsonobj.getLong("timestamp") rather than the implicit jsonobj.get("timestamp"). The latter will return a number object so the string conversion is unnecessary.
edited yesterday
MC Emperor
7,734125387
answered yesterday
JonathanS
1838
edited yesterday
MC Emperor
7,734125387
edited yesterday
MC Emperor
7,734125387
edited yesterday
MC Emperor
7,734125387
7,734125387
answered yesterday
JonathanS
1838
answered yesterday
JonathanS
1838
answered yesterday
JonathanS
1838
1838
Thank you for the suggestion, but I have to find a link between time and price and compare the time, then display the price for that time. So, maybe two arrays would be the answer. Do you mind explaining your answer with some code? How do I get all 59 timestamp values into an array?
– Ionut Apostu
yesterday
2
Don't use the obsolete date and time classes, likeDateandCalendar. Use the new Java Date and Time API available in thejava.timepackage.
– MC Emperor
yesterday
Good point, answered edited
– JonathanS
yesterday
@JonathanS That's better :-)
– MC Emperor
yesterday
add a comment |
Thank you for the suggestion, but I have to find a link between time and price and compare the time, then display the price for that time. So, maybe two arrays would be the answer. Do you mind explaining your answer with some code? How do I get all 59 timestamp values into an array?
– Ionut Apostu
yesterday
2
Don't use the obsolete date and time classes, likeDateandCalendar. Use the new Java Date and Time API available in thejava.timepackage.
– MC Emperor
yesterday
Good point, answered edited
– JonathanS
yesterday
@JonathanS That's better :-)
– MC Emperor
yesterday
Thank you for the suggestion, but I have to find a link between time and price and compare the time, then display the price for that time. So, maybe two arrays would be the answer. Do you mind explaining your answer with some code? How do I get all 59 timestamp values into an array?
– Ionut Apostu
yesterday
Thank you for the suggestion, but I have to find a link between time and price and compare the time, then display the price for that time. So, maybe two arrays would be the answer. Do you mind explaining your answer with some code? How do I get all 59 timestamp values into an array?
– Ionut Apostu
yesterday
2
2
Don't use the obsolete date and time classes, like
Date and Calendar. Use the new Java Date and Time API available in the java.time package.– MC Emperor
yesterday
Don't use the obsolete date and time classes, like
Date and Calendar. Use the new Java Date and Time API available in the java.time package.– MC Emperor
yesterday
Good point, answered edited
– JonathanS
yesterday
Good point, answered edited
– JonathanS
yesterday
@JonathanS That's better :-)
– MC Emperor
yesterday
@JonathanS That's better :-)
– MC Emperor
yesterday
add a comment |
Just for clarification: these objects are in an array/list right? If so, please edit the question to add the [ ] brackets
– Ivo Vidovic
yesterday
how are you converting it to string?
– Nawnit Sen
yesterday
I don't get it. You have string with JSON and convert it to string. Why?
– talex
yesterday
These objects come under this form: [{ "timestamp": 1542790613, "price": 4608.4564197580685 }, { "timestamp": 1542790614, "price": 4608.456348092037 }, { "timestamp": 1542790615, "price": 4608.358785472172 }, { "timestamp": 1542790616, "price": 4608.420295035769 }, { "timestamp": 1542790617, "price": 4608.420058274378 }]
– Ionut Apostu
yesterday
1
Title doesn't seem to reflect the question - more about type conversion than search.
– JonathanS
yesterday