Java の forEach でインデックスを使用する

// importing necessary packages
import java.util.stream.IntStream;

public class JavaForEachIndex {
  public static void main(String[] args) {
    // Creating an array of string
    String[] StrArr = {"A", "B", "C", "D", "E"};

    // Finding the length of the string array
    int Len = StrArr.length;

    // Using forEach with index
    IntStream.range(0, Len).forEach(index
        -> System.out.println("Value of array at Index : " + (index + 1) + " = " + StrArr[index]));
  }
}

Value of array at Index : 1 = A
Value of array at Index : 2 = B
Value of array at Index : 3 = C
Value of array at Index : 4 = D
Value of array at Index : 5 = E

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;

public class JavaForEachIndex {
  public static void main(String[] args) {
    // Creating a list of string
    List<String> StrList = Arrays.asList("A", "B", "C", "D", "E");

    // Creating a HashMap
    // Put the List of String to the HashMap
    HashMap<Integer, String> Collection = StrList.stream().collect(HashMap<Integer, String>::new,
        (MyMap, StreamVal) -> MyMap.put(MyMap.size(), StreamVal), (MyMap, map2) -> {});

    // Using the forEach with index
    Collection.forEach(
        (index, val) -> System.out.println("Value of list element at " + index + " = " + val));
  }
}

Value of list element at 0 = A
Value of list element at 1 = B
Value of list element at 2 = C
Value of list element at 3 = D
Value of list element at 4 = E