JAVA Map , HashMap , LinkedHashMap, TreeMap

Java Map : There are no duplicate values allowed in the map. A map object’s keys must be unique. HashMap, TreeMap, and LinkedHashMap are three groups that implement the Map interface in the Java collection system. SortedMap is a special interface for keeping all of the elements sorted. HashMap vs LinkedHashMap The ordering of the […]

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forEach Java 8 Examples

To loop or iterate a Map, List, Set, or Stream in Java 8, we can use the new forEach method. Loop a Map 1,1 A standard method for looping a Map is shown below. 1.2 We can use forEach in Java 8 to loop through a Map and print out its entries. Output 1.3 The […]

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(SOLVED) How to convert an Object to Map values in TypeScript?

Problem : I need to convert an object to a map to get the values of key dynamically Solution : The Map constructor takes an array of key-value pairs. Object.entries is a new Object static method available in ES2017 (19.1.2.5) If you need to support older environments and transpilation is not an option for you, […]

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