How to create objects from ArrayList and add them to a hashmap in Java?
So I have an ArrayList called Tokens that contains a series of strings. I am trying to create an object from each of the String in ArrayList and add it to the HashMap. How would I do that in a for-loop or whatever way?
The hashmap parameters would be (String, Object), where the string(key) is the string at the index of the ArrayList and Object is the one I'm creating from that index. I just need help the logic/outline to do this.
arrays object collections hashmap
asked Nov 24 '18 at 0:38
J.Doe1234J.Doe1234
13
add a comment |
So I have an ArrayList called Tokens that contains a series of strings. I am trying to create an object from each of the String in ArrayList and add it to the HashMap. How would I do that in a for-loop or whatever way?
The hashmap parameters would be (String, Object), where the string(key) is the string at the index of the ArrayList and Object is the one I'm creating from that index. I just need help the logic/outline to do this.
arrays object collections hashmap
asked Nov 24 '18 at 0:38
J.Doe1234J.Doe1234
13
add a comment |
So I have an ArrayList called Tokens that contains a series of strings. I am trying to create an object from each of the String in ArrayList and add it to the HashMap. How would I do that in a for-loop or whatever way?
The hashmap parameters would be (String, Object), where the string(key) is the string at the index of the ArrayList and Object is the one I'm creating from that index. I just need help the logic/outline to do this.
arrays object collections hashmap
asked Nov 24 '18 at 0:38
J.Doe1234J.Doe1234
13
So I have an ArrayList called Tokens that contains a series of strings. I am trying to create an object from each of the String in ArrayList and add it to the HashMap. How would I do that in a for-loop or whatever way?
The hashmap parameters would be (String, Object), where the string(key) is the string at the index of the ArrayList and Object is the one I'm creating from that index. I just need help the logic/outline to do this.
arrays object collections hashmap
arrays object collections hashmap
asked Nov 24 '18 at 0:38
J.Doe1234J.Doe1234
13
asked Nov 24 '18 at 0:38
J.Doe1234J.Doe1234
13
asked Nov 24 '18 at 0:38
J.Doe1234J.Doe1234
13
asked Nov 24 '18 at 0:38
J.Doe1234J.Doe1234
13
asked Nov 24 '18 at 0:38
J.Doe1234J.Doe1234
13
13
add a comment |
add a comment |
1 Answer
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List<String> tokens = new ArrayList<>();
Map<String, Object> map = new HashMap<>();
for (String s : tokens) {
map.put(s, new Object());
}
edited Nov 24 '18 at 3:01
Federico Peralta Schaffner
23.1k43676
answered Nov 24 '18 at 1:04
mraliasmralias
1
2
Please use theeditlink under your answer to add information rather than putting it in a comment where it might not be seen. Please also format your code as code.
– Nick
Nov 24 '18 at 1:13
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
List<String> tokens = new ArrayList<>();
Map<String, Object> map = new HashMap<>();
for (String s : tokens) {
map.put(s, new Object());
}
edited Nov 24 '18 at 3:01
Federico Peralta Schaffner
23.1k43676
answered Nov 24 '18 at 1:04
mraliasmralias
1
2
Please use theeditlink under your answer to add information rather than putting it in a comment where it might not be seen. Please also format your code as code.
– Nick
Nov 24 '18 at 1:13
add a comment |
List<String> tokens = new ArrayList<>();
Map<String, Object> map = new HashMap<>();
for (String s : tokens) {
map.put(s, new Object());
}
edited Nov 24 '18 at 3:01
Federico Peralta Schaffner
23.1k43676
answered Nov 24 '18 at 1:04
mraliasmralias
1
2
Please use theeditlink under your answer to add information rather than putting it in a comment where it might not be seen. Please also format your code as code.
– Nick
Nov 24 '18 at 1:13
add a comment |
List<String> tokens = new ArrayList<>();
Map<String, Object> map = new HashMap<>();
for (String s : tokens) {
map.put(s, new Object());
}
edited Nov 24 '18 at 3:01
Federico Peralta Schaffner
23.1k43676
answered Nov 24 '18 at 1:04
mraliasmralias
1
List<String> tokens = new ArrayList<>();
Map<String, Object> map = new HashMap<>();
for (String s : tokens) {
map.put(s, new Object());
}
edited Nov 24 '18 at 3:01
Federico Peralta Schaffner
23.1k43676
answered Nov 24 '18 at 1:04
mraliasmralias
1
edited Nov 24 '18 at 3:01
Federico Peralta Schaffner
23.1k43676
edited Nov 24 '18 at 3:01
Federico Peralta Schaffner
23.1k43676
edited Nov 24 '18 at 3:01
Federico Peralta Schaffner
23.1k43676
23.1k43676
answered Nov 24 '18 at 1:04
mraliasmralias
1
answered Nov 24 '18 at 1:04
mraliasmralias
1
answered Nov 24 '18 at 1:04
mraliasmralias
1
1
2
Please use theeditlink under your answer to add information rather than putting it in a comment where it might not be seen. Please also format your code as code.
– Nick
Nov 24 '18 at 1:13
add a comment |
2
Please use theeditlink under your answer to add information rather than putting it in a comment where it might not be seen. Please also format your code as code.
– Nick
Nov 24 '18 at 1:13
2
2
Please use the
edit link under your answer to add information rather than putting it in a comment where it might not be seen. Please also format your code as code.– Nick
Nov 24 '18 at 1:13
Please use the
edit link under your answer to add information rather than putting it in a comment where it might not be seen. Please also format your code as code.– Nick
Nov 24 '18 at 1:13
add a comment |
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