java lambda foreach code example
Example 1: java lambda iterate list
List<String> items = new ArrayList<>();
items.add("A");
items.add("B");
items.add("C");
items.add("D");
items.add("E");
items.forEach(item->System.out.println(item));
items.forEach(item->{
if("C".equals(item)){
System.out.println(item);
}
});
items.forEach(System.out::println);
items.stream()
.filter(s->s.contains("B"))
.forEach(System.out::println);
Example 2: inline foreach java
names.forEach(name -> System.out.println(name));
Example 3: 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++));
}