java-basics/core-java/strings/ListUsingLambdas.java at master · CodeForHunger/java-basics · GitHub

39 lines (28 loc) · 811 Bytes

package strings;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import java.util.function.Predicate;

import java.util.stream.Collectors;

public class ListUsingLambdas {

public static <T> List<T>

removeElements(List<T> l, Predicate<T> p) {

l = l.stream()

.filter(p)

.collect(Collectors.toList());

return l;

}

public static void main(String[] args) {

List<String> l = new ArrayList<>(

Arrays.asList("Geeks",

null,

"forGeeks",

null,

"A counputer portal"));

System.out.println("List with null values: "+l);

// Creating a Predicate condition checking for null

Predicate<String> isNull = i -> (i == null);

l = removeElements(l, isNull);

System.out.println("List with null values removed: " + l);

}

Expand file tree