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ForEachEx.java
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60 lines (51 loc) · 1.53 KB
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package loop;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Stream;
public class ForEachEx {
public static void main(String[] args) {
mapExample();
System.out.println("--------------List---------------");
listExample();
}
private static void mapExample() {
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.put("G", 70);
items.forEach((k,v)->System.out.println("Item :" + k + " Count: " + v));
System.out.println("---------------------------------");
items.forEach((k,v)->{
System.out.println("Item :" + k + " Count: " + v);
if("E".equalsIgnoreCase(k))
System.out.println("Hello EEEEE");
});
}
private static void listExample() {
List<String> list = new ArrayList<>();
list.add("A");
list.add("B");
list.add("C");
list.add("D");
list.add("E");
list.add("F");
list.add("G");
list.add("H");
list.forEach((item)->System.out.println(item));
System.out.println("---------------------------------");
list.forEach((item)->{
if("C".equalsIgnoreCase(item))
System.out.println(item);
});
System.out.println("---------------------------------");
list.forEach(System.out::println);
System.out.println("---------------------------------");
list.stream().filter(s->s.contains("B")).forEach(System.out::println);
}
}