public boolean containsValue(Object value): Returns true if this map maps one or more keys to the specified value. Complete Code: Here we have a HashMap of integer keys and String values, we are checking whether
import java.util.Map; /** * * @author https://crunchify.com */ public class CrunchifyHashMapContainsKey { static Map<String, String> crunchifyComapnies = new HashMap<>(); private static void checkIfValueExist(String value) { // Let's checkout if Value exist String result = cru...
If your array is sorted, you can use the Arrays binarySearch() method to check if the array contains the given value or not.String[] vowels = { "A", "I", "E", "O", "U" }; System.out.println("Unsorted Array = " + Arrays.toString(vowels)); Arrays.parallelSort(vowels); System....
In this short article, you'll learn how to check if an array contains a certain value in Java. We will look at different examples of string as well as primitive arrays to find out if a certain value exists. String Arrays The simplest and easiest way to check if a string array contains...
1.1 Check if a String Array contains a certain value “A”. StringArrayExample1.java package com.mkyong.core; import java.util.Arrays; import java.util.List; public class StringArrayExample1 { public static void main(String[] args) { ...
import java.util.HashMap; public class Main { public static void main(String[] args) { HashMap<String, String> hMap = new HashMap<String, String>(); hMap.put("1", "One"); hMap.put("2", "Two"); hMap.put("3", "Three"); System.out.println(hMap.containsValue("Two")); } }...
To check if a Bash array contains a value, use the echo command and pipe it to grep command to search the value from the defined array. Use the grep Command 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 #!/bin/bash #declare an array my_array=("apple" "banana" "cherr...
1. 4 Different Ways to Check If an Array Contains a Value 1) Using List: publicstaticbooleanuseList(String[]arr,StringtargetValue){returnArrays.asList(arr).contains(targetValue);} 2) Using Set: publicstaticbooleanuseSet(String[]arr,StringtargetValue){Set<String>set=newHashSet<String>(Arrays...
1.1 Check if a String Array contains a certain value “A”. StringArrayExample1.java package com.mkyong.core; import java.util.Arrays; import java.util.List; public class StringArrayExample1 { public static void main(String[] args) { ...
{ public static void main(String[] args) { LinkedHashMap<String,String> lHashMap = new LinkedHashMap<String,String>(); lHashMap.put("1", "One"); lHashMap.put("2", "Two"); lHashMap.put("3", "Three"); boolean blnExists = lHashMap.containsValue("Two"); System.out...