Teachh :
I have two HashMaps<String><Integer>:
hm1 ={Value1=1,Value2=2,Value3=,3}
hm2 = {Value3=23,Value1=2,Value2=12}
OUTPUT:
hm3 = {Value1=2,Value2=12,Value3=23}
Thanks in advance!
dassum :
See if the below code solves your problem. You can use Java 8 merge function.
//map 1
HashMap<String, Integer> map1 = new LinkedHashMap<>();
map1.put("Value1", 1);
map1.put("Value2", 2);
map1.put("Value3", 3);
//map 2
HashMap<String, Integer> map2 = new LinkedHashMap<>();
map2.put("Value1", 2);
map2.put("Value2", 12);
map2.put("Value3", 23);
HashMap<String, Integer> map3 = new LinkedHashMap<>(map1);
//Merge maps
map2.forEach((key, value) -> map3.merge(key, value, (v1, v2) -> v2)
);
System.out.println(map3);
Please check https://www.baeldung.com/java-merge-maps
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