java-basics/core-java/strings/ListUsingRemoveAll.java at patch-1 · CodeForHunger/java-basics · GitHub

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package strings;

import java.util.List;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collection;

import java.util.function.Predicate;

public class ListUsingRemoveAll {

// Generic function to remove elements using Predicate

public static <T> List<T>

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

{

// Create collection using Predicate

Collection<T> collection = new ArrayList<>();

for (T t : l) {

if (p.test(t)) {

collection.add(t);

}

// Print the list

System.out.println("Collection to be removed: " + collection);

// Removing 10 using List.removeAll()

// passing a collection

l.removeAll(collection);

// Return the list

return l;

}

public static void main(String[] args)

{

// Create a list with null values

List<String> l = new ArrayList<>(

Arrays.asList("1", "10", "15", "10", "12", "5", "10", "20"));

// Print the list

System.out.println("Original List: " + l);

// Creating a Predicate condition checking for 10

Predicate<String> is10 = i -> (i == "10");

// Removing using Predicate

l = removeElements(l, is10);

// Print the list

System.out.println("Updated List: " + l);

}

java-basics/core-java/strings/ListUsingRemoveAll.java at patch-1 · CodeForHunger/java-basics · GitHub

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