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

37 lines (26 loc) · 761 Bytes

package strings;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import java.util.function.Predicate;

public class ListRemoveIf {

public static <T>List<T>

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

// Removing nulls using Java Stream

// using Predicate condition in removeIf()

l.removeIf(x -> p.test(x));

return l;

}

public static void main(String[] args) {

List<String> l = new ArrayList<>(

Arrays.asList("Geeks",

null,

"forGeeks",

null,

"A computer portal"));

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

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

l = removeElements(l, isNull);

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

}

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