Convert List Object to String in Java

Question

I need to convert from List lt Object gt  to String     I made   List lt Object gt  lst     String arr   lst toString      But I got this string                           is just one string  but I need String    Thanks a lot

User · Accepted Answer

You have to loop through the list and fill your String[].

String[] array = new String[lst.size()];
int index = 0;
for (Object value : lst) {
  array[index] = (String) value;
  index++;
}

If the list would be of String values, List then this would be as simple as calling lst.toArray(new String[0]);

User · Answer

Java 8 has the option of using streams like   List lt Object gt  lst   new ArrayList lt  gt     String   strings   lst stream   toArray String    new

User · Answer

You could use toArray   to convert into an array of Objects followed by this method to convert the array of Objects into an array of Strings   Object   objectArray   lst toArray    String   stringArray   Arrays copyOf objectArray  objectArray length  String   class

User · Answer

If we are very sure that List lt Object gt  will contain collection of String  then probably try this   List lt Object gt  lst   new ArrayList lt Object gt     lst add  sample    lst add  simple    String   arr   lst toArray new String        System out println Arrays deepToString arr

User · Answer

Lot of concepts here which will be useful     List lt Object gt  list   new ArrayList lt Object gt  Arrays asList new String    Java   is   cool      String   a   new String list size     list toArray a     Tip to print array of Strings   System out println Arrays toString a

User · Answer

Using Guava  List lt Object gt  lst         List lt String gt  ls   Lists transform lst  Functions toStringFunction

User · Answer

There is a simple way available in Kotlin var lst  List lt Object gt             listOFStrings  ArrayList lt String gt     lst   map   it name

[java] Convert List<Object> to String[] in Java

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