I have 2 list, where as list1 has 5 values and list2 has 2 values as below,

I need to fetch both list and check which list1 value and list2 value And I'm looking for output as below

A has -

B has -

C has 000123

D has -

E has 000876

Can someone help on this? Tried below screenshot of code enter image description here

CodePudding user response：

I am assuming your lists are same length and in list2 empty values are null.

    List<String> result =  new ArrayList<>();

    for (int i = 0; i < list1.size(); i  ) {
        if(list2.get(i) == null){
            result.add(list1.get(i) " has");
        }else{
            result.add(list1.get(i) " has "  list2.get(i));
        }
    }
    System.out.println(String.join(" - ",result));

CodePudding user response：

You can try this. I have considered that list1 and list2 will be of same size.

    List<String> list1 = Arrays.asList("A", "B", "C", "D", "E");
    List<String> list2 = Arrays.asList("-", "-", "000123", "-", "000876");

    Map<String, String> newList = new HashMap<>();

    for (int i = 0; i < list1.size(); i  ) {
        newList.put(list1.get(i), list2.get(i));
    }

    newList.forEach((key, value) -> System.out.println(key   " has "   value));
    
    OutPut: 
    A has -
    B has -
    C has 000123
    D has -
    E has 000876