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Java - Code Samples

 Sample 1. Java 8 Map Merge Example ( Map.merge )

Map<String,String> intMap = new HashMap<String,String>();
strMap.put("Key2", "Value2");
String str = strMap.merge("Key1","Value56",(v1,v2)->v1.substring(3).concat(v2));
System.out.println(str); // prints ue1Value56
System.out.println(strMap); // prints {Key2=Value2, Key1=ue1Value56}

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