BruceyBandit :
Is there a way to combine two hashmaps into a third third hashmap?
Example:
Hashmap 1 has {key1, value1}, {key2, value2}, {key3, value3)
Hashmap 2 has {key1, value1}, {key2, value2}
Hashmap 3 has {key1, value1}, {key2, value2}, {key3, value3), {key1, value1}, {key2, value2}
Below is an example code:
Map<String, Object> body1 = new HashMap<>();
Map<String, Object> body2 = new HashMap<>();
Map<String, Object> body = new HashMap<>();
table.getTableRows().forEach(row -> {
String value = row.getCell(VALUE);
String field = row.getCell(FIELD);
if (body1.containsKey(field)) {
body2.put(field, value);
} else {
body1.put(field, value);
}
});
//Append both hashmaps into one - body
Arvind Kumar Avinash :
You can have only one value with the same key i.e. you can not have {key1, value1} twice or more. Whenever you will add an entry with key1, it will replace the old value of key1.
If you want to keep both the maps in one collection, you need to use a different collection e.g. List. Given below is a demo using List:
import java.util.List;
import java.util.Map;
public class Main {
public static void main(String args[]) {
Map<String, Object> body1=Map.of("key1","value1","key2","value2","key3","value3");
Map<String, Object> body2=Map.of("key1","value1","key2","value2");
List<Map<String, Object>> body=List.of(body1,body2);
for(Map<String, Object> map:body) {
System.out.println(map);
}
}
}
Output:
{key1=value1, key2=value2, key3=value3}
{key2=value2, key1=value1}
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