java HashMap Iterator

java HashMap Iterator
using for each loop

for (Map.Entry entry : hashMap.entrySet()) {
System.out.println("key,val: " + entry.getKey() + "," + entry.getValue());
}

how to get map key in java

Try this

Map<Integer, Integer> map = new HashMap<Integer, Integer>();
for (Map.Entry<Integer, Integer> entry : map.entrySet()) {
    System.out.println("Key = " + entry.getKey() + ", Value = " + entry.getValue());
}

How to Iterate Through a HashMap

Map<Integer, Integer> map = new HashMap<Integer, Integer>();
for (Map.Entry<Integer, Integer> entry : map.entrySet()) {
    System.out.println("Key = " + entry.getKey() + ", Value = " + entry.getValue());
}