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Java 2021-11-18 14:37:27
how to add multiple filter condition in Java stream filter chain
import java.util.ArrayList; import java.util.List; import java.util.function.Predicate; import java.util.stream.Collectors; public class Main { public static void main(String[] args) { &... Add solution -
Java 2021-11-16 11:46:19
how to create a list in java
import java.util.ArrayList; import java.util.LinkedList; import java.util.List; class scratch{ public static void main(String[] args) { List<Integer> aList = new ArrayList<>(); List<Integer> lList = new LinkedList<... Add solution -
Java 2021-11-15 03:47:26
reading in lines from a file java
private ArrayList<String> readFileLines(String filepath) throws FileNotFoundException, IOException{ File fp = new File(filepath); FileReader fr = new FileReader(fp); BufferedReader br = new BufferedReader(fr); ArrayList<String> lines ... Add solution -
Other 2021-11-14 21:44:12
how to insert duplicate key in hashmap
Map<String, List<String>> map = new HashMap<>();map.computeIfAbsent("key1", k -> new ArrayList<>()).add("value1");map.computeIfAbsent("key1", k -> new ArrayList<>()).add("value2")... Add solution -
Java 2021-11-11 04:43:22
arraylist length java
import java.util.ArrayList; /* * Java Program to find the length of ArrayList. * */ public class ArrayListDemo{ public static void main(String[] args) { System.out.println("Welcome to Java Program to find the length of array list"); ... Add solution -
Java 2021-11-10 15:04:18
java arraylist remove
// java program on ArrayList remove(int index) method example import java.util.ArrayList; import java.util.List; public class ArrayListRemoveIndex { public static void main(String[] args) { List<Integer> al = new ArrayList<>(); ... Add solution -
Java 2021-11-10 10:36:17
Arraylist swap calues
public class ArrayListExample { public static void main(String[] args) { ArrayList<String> list = new ArrayList<>(Arrays.asList("a", &q... Add solution -
Java 2021-11-07 06:34:22
java list length
import java.util.ArrayList; /* * Java Program to find the length of ArrayList. * */ public class ArrayListDemo{ public static void main(String[] args) { System.out.println("Welcome to Java Program to find the length of array list"); ... Add solution -
Java 2021-11-03 18:11:08
java append to list
package com.journaldev.examples; import java.util.ArrayList; import java.util.List; public class ListAddExamples { public static void main(String[] args) { List<String> vowels = new ArrayList<>(); vowels.add("A"); // [A] ... Add solution
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