Foreach in java 8 using map code example
Example 1: java 8 loop in map
Map<String, Integer> items = new HashMap<>();
items.put("A", 10);
items.put("B", 20);
items.put("C", 30);
items.put("D", 40);
items.put("E", 50);
items.put("F", 60);
items.forEach((k,v)->System.out.println("Item : " + k + " Count : " + v));
items.forEach((k,v)->{
System.out.println("Item : " + k + " Count : " + v);
if("E".equals(k)){
System.out.println("Hello E");
}
});
Example 2: loop in java 8
List<Integer> data = new ArrayList<>();
for(int i = 0,size=data.size();i<size;i++){
System.out.println(data.get(i));
}
for(Integer element : data){
System.out.println(element);
}
data.forEach(System.out::println);
data.stream().forEach(System.out::println)
int i = 0;
while(i<data.size()){
System.out.println(data.get(i++));
}