Map<String,String> intMap = new HashMap<String,String>();
strMap.put("Key1","Value1");
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}
|
Map<String,String> strMap = new HashMap<String,String>();
strMap.put("Key1","Value1");
strMap.put("Key2", "Value2");
String str = strMap.merge("Key4","Value56",(v1,v2)->v1.substring(3).concat(v2));
System.out.println(str); // prints Value56
System.out.println(strMap); // prints {Key2=Value2, Key1=Value1, Key4=Value56}
|