import java.util.HashMap;
import java.util.Map;
public class HashMapDeleteAll {
public static void main(String[] args) {
Map<Integer,String> hm = new HashMap<Integer,String>();
/*
* Associates the specified value with the specified key in
this map (optional operation). If the map previously
contained a mapping for the key, the old value is
replaced by the specified value
*/
hm.put(1,"ankush");
hm.put(2, "amit");
hm.put(3,"shivam");
hm.put(4,"ankit");
hm.put(5, "yogesh");
//print hashmap
System.out.println("Before Clear HashMap is = "+hm);
/*
* The map will be empty after this call returns.
*/
hm.clear();
System.out.println("After Clear HashMap is ="+hm);
}
}
OutPut:
Before Clear HashMap is = {1=ankush, 2=amit, 3=shivam, 4=ankit, 5=yogesh}
After Clear HashMap is ={}
import java.util.Map;
public class HashMapDeleteAll {
public static void main(String[] args) {
Map<Integer,String> hm = new HashMap<Integer,String>();
/*
* Associates the specified value with the specified key in
this map (optional operation). If the map previously
contained a mapping for the key, the old value is
replaced by the specified value
*/
hm.put(1,"ankush");
hm.put(2, "amit");
hm.put(3,"shivam");
hm.put(4,"ankit");
hm.put(5, "yogesh");
//print hashmap
System.out.println("Before Clear HashMap is = "+hm);
/*
* The map will be empty after this call returns.
*/
hm.clear();
System.out.println("After Clear HashMap is ="+hm);
}
}
OutPut:
Before Clear HashMap is = {1=ankush, 2=amit, 3=shivam, 4=ankit, 5=yogesh}
After Clear HashMap is ={}
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