Commit bc4fc56

committed

HashSet

1 parent 4973cb4 commit bc4fc56Copy full SHA for bc4fc56

File tree

+28

-0

lines changed

+28

-0

lines changed

Lines changed: 28 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,28 @@`
	`1`	`+import java.util.HashMap;`
	`2`	`+`
	`3`	`+public class Hashing2 {`
	`4`	`+ public static void main(String[] args) {`
	`5`	`+`
	`6`	`+ //declaration and initialization of Hashmap`
	`7`	`+ HashMap<String,Integer> map = new HashMap<>();`
	`8`	`+`
	`9`	`+ //put method to add key value pairs in the map`
	`10`	`+ map.put("China",150);`
	`11`	`+ map.put("India", 130);`
	`12`	`+ map.put("US",50);`
	`13`	`+`
	`14`	`+ //to print elements and its value inside the map`
	`15`	`+ System.out.println(map);`
	`16`	`+`
	`17`	`+ //get method to get a particular element and its value by its key`
	`18`	`+ int ans = map.get("China");`
	`19`	`+ System.out.println(ans);`
	`20`	`+`
	`21`	`+ //remove method to remove element by key`
	`22`	`+ map.remove("US");`
	`23`	`+ System.out.println(map);`
	`24`	`+`
	`25`	`+ //size method to get the size of the map`
	`26`	`+ System.out.println(map.size());`
	`27`	`+ }`
	`28`	`+}`

Comments

(0)