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JAWhat is changed in HashMap after Java 8?
HashMap buckets are converted into Tree from Long Linked List
Improvement in time complexity,faster access and search operations
#java #Hashmap #java8 #improvement #treemap
@javacorpbro
#Java Hashmap Class
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JAHashMap looks simple… but inside it’s 🔥 pure genius.
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S_Java Logical Program – Anagram Check 🔎
Sorting + Array comparison 💡
Strong interview question 🚀
#Java #Strings #CoreJava
#Anagram #JavaProgramming
@s__d_.08
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DE#java #coding #developer #programming #skills Audio courtesy of Pixabay
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MSequals() Override? Then Don’t Forget hashCode() #JavaProgramming
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JAComment your answer 👇
Answer:B
Explanation:Map<Integer, String> map = new HashMap<>();
→ Creates an empty HashMap
map.put(1, "A");
→ Map becomes {1=A}
map.put(1, "B");
→ Same key 1 again
→ HashMap does not allow duplicate keys
→ It replaces the old value
Now map becomes {1=B}
System.out.print(map);
→ Prints {1=B}
✅ Final Output: {1=B}
Simple rule:
HashMap allows duplicate values, but not duplicate keys 🔥
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@javainterview.track
191
JACurious about how to find characters or words in a Java string? 💻🔍 In my latest Java Strings 101 video, I break down the indexOf() method with easy, beginner-friendly examples! See how simple it is to search your strings and level up your coding skills.
Got a question or topic request? Drop it in the comments!👇
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214
GEJava Streams in 1 min – toArray()
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COWhat is the output?
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@geekific
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CO🚀 Arrays in Java – Beginner Friendly Explanation
Understanding arrays is one of the first steps toward mastering Java programming.
📌 What is an Array?
An array is a collection of similar data types stored in a single variable.
💡 Why use Arrays?
✔ Store multiple values
✔ Reduce number of variables
✔ Manage data efficiently
🧠 Example:
Java
Copy code
int[] marks = {70, 80, 90, 85};
🔹 Index starts from 0
🔹 Array size is fixed
🔹 Stores values of the same type
Arrays help in structured and efficient data handling — a core concept every Java developer must understand.
java arrays, java basics, programming fundamentals, data structures, coding concepts, beginner java, software development
#java #arrays #javaprogramming #coding #programming
@codewithprashantt
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