Question

How to convert list of integers to list of strings in Java

Answer 1

import java.util.*; 
import java.util.stream.*; 
import java.util.function.*; 

public class MyClass {
    public static void main(String args[]) {
        List<Integer> lint = Arrays.asList(1, 2, 3, 4, 5, 6); 
  
        List<String> lstring = new ArrayList<>(lint.size());
        
        lstring = lint.stream() 
                 .map(s -> String.valueOf(s)) 
                 .collect(Collectors.toList()); 
                 
        System.out.println(lstring); 
    }
}


/*
run:

[1, 2, 3, 4, 5, 6]

*/

 

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Answer 2

import java.util.*; 
import java.util.stream.Collectors;

public class MyClass {
    public static void main(String args[]) {
        List<Integer> lint = Arrays.asList(1, 2, 3, 4, 5, 6); 
  
        List<String> lstring = lint.stream().map(Object::toString)
                                            .collect(Collectors.toList());
                 
        System.out.println(lstring); 
    }
}


/*
run:

[1, 2, 3, 4, 5, 6]

*/

 

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