java - adding multiple data to Object array at run time -

how set values 2 dimension array of objects in java.

following loop :

object[][] hexgensecurityinferencedata = null; (string methodname: knowgoodmap.keyset()) {     hexgensecurityinferencedata = new object[][] {         {             (knowngoodinforo) knowgoodmap.get(methodname), new object[] {                 (methodpropertiesro) methodpropertiesmap.get(methodname), (list) methodparametersmap.get(methodname)             }         },     }; } 

this prints 1 row of data. sure make mistake when adding values array of object don't know how fix.

kindly me fix this

you can't add elements array - can set elements in array.

i suggest have list<object[]> instead:

list<object[]> hexgensecurityinferencedata = new arraylist<object[]>(); (string methodname:knowgoodmap.keyset()) {     hexgensecurityinferencedata.add(new object[] {         knowgoodmap.get(methodname),         new object[] {             methodpropertiesmap.get(methodname),             methodparametersmap.get(methodname)         }      });  } 

(i've removed casts pointless... you're storing values in object[] anyway. benefit of casts cause exception if objects of unexpected type.)

you could still use array if wanted, you'd need create right size start with, , keep "current index". it's harder use arrays lists anyway.

if need array, can create 1 list:

object[][] array = hexgensecurityinferencedata.toarray(new object[0][]); 

doing in 2 stages way simpler directly populating array up-front.

i'd suggest 2 further changes:

• don't use object[] this... create type encapsulate data. current approach, you've got nested object[] within object[]... code reading data horrible.
• use entryset() instead of keyset(), don't need fetch value key