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0

I am very new to java and just started with json...

I have the following json file:

"step1": 
 "version": 1,
 "items": 
 "run": false,
 "jump": true
 
,
"step2": 
 "version": "None",
 "items": 
 "happy": true,
 "sad": false
 

I am using Gson in my main like this:

Gson gs = new Gson();
Content tmp = gs.fromJson(<json string>, Content.class);

my class:

public class Content 
 @SerializedName("step1")
 private Step step1;

 @SerializedName("step2")
 private Step step2;

each step class:

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 ???????

as you can see the "?????" part is what I am trying to understand - How can I convert the items without needing to know the field name..? meaning to a HashMap/another iterable object..? can I initialize using a method..?

I have tried creating an Item class with a constructor but I do not understand how to use it in this case..

java json serialization initialization gson

share|improve this question

edited Mar 26 at 3:56

Cœur

21.5k1010 gold badges123123 silver badges169169 bronze badges

asked Nov 6 '17 at 16:51

Dardar1991Dardar1991

2799 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  actually gson is pretty simple to use, you dont need to explicity give the serialization name.... @SerializedName("items")
  
  – ΦXocę 웃 Пepeúpa ツ
  Nov 6 '17 at 16:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So what do I do instead...? How can I convert this file to this class without it...?
  
  – Dardar1991
  Nov 6 '17 at 16:58
  

  
  
  
  

add a comment | 

0

I am very new to java and just started with json...

I have the following json file:

"step1": 
 "version": 1,
 "items": 
 "run": false,
 "jump": true
 
,
"step2": 
 "version": "None",
 "items": 
 "happy": true,
 "sad": false
 

I am using Gson in my main like this:

Gson gs = new Gson();
Content tmp = gs.fromJson(<json string>, Content.class);

my class:

public class Content 
 @SerializedName("step1")
 private Step step1;

 @SerializedName("step2")
 private Step step2;

each step class:

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 ???????

as you can see the "?????" part is what I am trying to understand - How can I convert the items without needing to know the field name..? meaning to a HashMap/another iterable object..? can I initialize using a method..?

I have tried creating an Item class with a constructor but I do not understand how to use it in this case..

java json serialization initialization gson

share|improve this question

edited Mar 26 at 3:56

Cœur

21.5k1010 gold badges123123 silver badges169169 bronze badges

asked Nov 6 '17 at 16:51

Dardar1991Dardar1991

2799 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  actually gson is pretty simple to use, you dont need to explicity give the serialization name.... @SerializedName("items")
  
  – ΦXocę 웃 Пepeúpa ツ
  Nov 6 '17 at 16:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So what do I do instead...? How can I convert this file to this class without it...?
  
  – Dardar1991
  Nov 6 '17 at 16:58
  

  
  
  
  

add a comment | 

I am very new to java and just started with json...

I have the following json file:

"step1": 
 "version": 1,
 "items": 
 "run": false,
 "jump": true
 
,
"step2": 
 "version": "None",
 "items": 
 "happy": true,
 "sad": false
 

I am using Gson in my main like this:

Gson gs = new Gson();
Content tmp = gs.fromJson(<json string>, Content.class);

my class:

public class Content 
 @SerializedName("step1")
 private Step step1;

 @SerializedName("step2")
 private Step step2;

each step class:

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 ???????

as you can see the "?????" part is what I am trying to understand - How can I convert the items without needing to know the field name..? meaning to a HashMap/another iterable object..? can I initialize using a method..?

I have tried creating an Item class with a constructor but I do not understand how to use it in this case..

java json serialization initialization gson

share|improve this question

edited Mar 26 at 3:56

Cœur

21.5k1010 gold badges123123 silver badges169169 bronze badges

asked Nov 6 '17 at 16:51

Dardar1991Dardar1991

2799 bronze badges

"step1": 
 "version": 1,
 "items": 
 "run": false,
 "jump": true
 
,
"step2": 
 "version": "None",
 "items": 
 "happy": true,
 "sad": false
 

Gson gs = new Gson();
Content tmp = gs.fromJson(<json string>, Content.class);

public class Content 
 @SerializedName("step1")
 private Step step1;

 @SerializedName("step2")
 private Step step2;

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 ???????

share|improve this question

edited Mar 26 at 3:56

Cœur

21.5k1010 gold badges123123 silver badges169169 bronze badges

asked Nov 6 '17 at 16:51

Dardar1991Dardar1991

2799 bronze badges

share|improve this question

edited Mar 26 at 3:56

Cœur

21.5k1010 gold badges123123 silver badges169169 bronze badges

asked Nov 6 '17 at 16:51

Dardar1991Dardar1991

2799 bronze badges

edited Mar 26 at 3:56

Cœur

21.5k1010 gold badges123123 silver badges169169 bronze badges

edited Mar 26 at 3:56

Cœur

21.5k1010 gold badges123123 silver badges169169 bronze badges

asked Nov 6 '17 at 16:51

Dardar1991Dardar1991

2799 bronze badges

asked Nov 6 '17 at 16:51

Dardar1991Dardar1991

2799 bronze badges

2 Answers
2

active

oldest

votes

0

The solution that worked for me is:

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 private HashMap<String,Boolean> items;

share|improve this answer

answered Nov 7 '17 at 11:44

Dardar1991Dardar1991

2799 bronze badges

add a comment | 

0

You can use a Map<String, Boolean> to store your items. You Step class can be something, like this:

public class Step 
 private String version;
 private Map<String, Boolean> items;

Then you can add your values to the Map:

 Step step = new Step();
 step.setVersion("None");

 Map<String, Boolean> items = new HashMap<>();
 items.put("happy", Boolean.TRUE);
 items.put("sad", Boolean.FALSE);
 step.setItems(items);

Hope that helps you.

share|improve this answer

edited Nov 7 '17 at 12:29

answered Nov 6 '17 at 17:00

zappeezappee

3,69055 gold badges3939 silver badges5959 bronze badges

add a comment | 

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0

The solution that worked for me is:

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 private HashMap<String,Boolean> items;

share|improve this answer

answered Nov 7 '17 at 11:44

Dardar1991Dardar1991

2799 bronze badges

add a comment | 

0

The solution that worked for me is:

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 private HashMap<String,Boolean> items;

share|improve this answer

answered Nov 7 '17 at 11:44

Dardar1991Dardar1991

2799 bronze badges

add a comment | 

The solution that worked for me is:

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 private HashMap<String,Boolean> items;

share|improve this answer

answered Nov 7 '17 at 11:44

Dardar1991Dardar1991

2799 bronze badges

public class Step
 @SerializedName("version")
 private String version;

 @SerializedName("items") 
 private HashMap<String,Boolean> items;

share|improve this answer

answered Nov 7 '17 at 11:44

Dardar1991Dardar1991

2799 bronze badges

answered Nov 7 '17 at 11:44

Dardar1991Dardar1991

2799 bronze badges

answered Nov 7 '17 at 11:44

Dardar1991Dardar1991

2799 bronze badges

0

You can use a Map<String, Boolean> to store your items. You Step class can be something, like this:

public class Step 
 private String version;
 private Map<String, Boolean> items;

Then you can add your values to the Map:

 Step step = new Step();
 step.setVersion("None");

 Map<String, Boolean> items = new HashMap<>();
 items.put("happy", Boolean.TRUE);
 items.put("sad", Boolean.FALSE);
 step.setItems(items);

Hope that helps you.

share|improve this answer

edited Nov 7 '17 at 12:29

answered Nov 6 '17 at 17:00

zappeezappee

3,69055 gold badges3939 silver badges5959 bronze badges

add a comment | 

0

You can use a Map<String, Boolean> to store your items. You Step class can be something, like this:

public class Step 
 private String version;
 private Map<String, Boolean> items;

Then you can add your values to the Map:

 Step step = new Step();
 step.setVersion("None");

 Map<String, Boolean> items = new HashMap<>();
 items.put("happy", Boolean.TRUE);
 items.put("sad", Boolean.FALSE);
 step.setItems(items);

Hope that helps you.

share|improve this answer

edited Nov 7 '17 at 12:29

answered Nov 6 '17 at 17:00

zappeezappee

3,69055 gold badges3939 silver badges5959 bronze badges

add a comment | 

You can use a Map<String, Boolean> to store your items. You Step class can be something, like this:

public class Step 
 private String version;
 private Map<String, Boolean> items;

Then you can add your values to the Map:

 Step step = new Step();
 step.setVersion("None");

 Map<String, Boolean> items = new HashMap<>();
 items.put("happy", Boolean.TRUE);
 items.put("sad", Boolean.FALSE);
 step.setItems(items);

Hope that helps you.

share|improve this answer

edited Nov 7 '17 at 12:29

answered Nov 6 '17 at 17:00

zappeezappee

3,69055 gold badges3939 silver badges5959 bronze badges

public class Step 
 private String version;
 private Map<String, Boolean> items;

 Step step = new Step();
 step.setVersion("None");

 Map<String, Boolean> items = new HashMap<>();
 items.put("happy", Boolean.TRUE);
 items.put("sad", Boolean.FALSE);
 step.setItems(items);

share|improve this answer

edited Nov 7 '17 at 12:29

answered Nov 6 '17 at 17:00

zappeezappee

3,69055 gold badges3939 silver badges5959 bronze badges

answered Nov 6 '17 at 17:00

zappeezappee

3,69055 gold badges3939 silver badges5959 bronze badges

answered Nov 6 '17 at 17:00

zappeezappee

3,69055 gold badges3939 silver badges5959 bronze badges