Blog: Java concept of the day (Pramod Bablad)


279 blogs updated: 30 min. ago
Differences Between Java 8 map() And flatMap()
Java 8 map() and flatMap() are two important methods of java.util.stream.Stream interface used for transformation or mapping operations. Bot...
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08-12-2019 15:32:44 Java concept of t ... (Pramod Bablad) Beginners
Java 8 Merge Two Maps With Same Keys
Problem : Write a Java 8 program or function which merge two maps with same keys. Your program should take two maps (which may have same key...
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26-11-2019 15:44:28 Java concept of t ... (Pramod Bablad) Beginners
Merge Two Arrays Into Single Sorted Array Without Duplicates In Java
Problem : Write a Java program or function which takes two integer arrays (Sorted or Unsorted) as input and merge them into single sorted ar...
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14-11-2019 11:02:29 Java concept of t ... (Pramod Bablad) Beginners
Java 8 Sort HashMap By Values
In previous post, we have seen how to sort HashMap by keys using Java 8 comparingByKey() method. In this post, we will see how to sort HashM...
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07-11-2019 16:49:07 Java concept of t ... (Pramod Bablad) Beginners
Java 8 Sort HashMap By Keys
HashMap, LinkedHashMap and TreeMap are three most popular Map types. LinkedHashMap maintains insertion order i.e elements are stored as they...
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13-10-2019 21:01:24 Java concept of t ... (Pramod Bablad) Beginners
How To Sort Array Elements By Frequency In Java?
Problem : Write a Java program or function which takes an integer array as input and sort array elements in descending order of their freque...
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24-09-2019 21:34:34 Java concept of t ... (Pramod Bablad) Beginners
Find Common Elements In All Rows Of A Matrix In Java
Problem : Write a Java program or function which takes MxN matrix as input and find elements which are common in all rows of a matrix. For e...
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17-09-2019 20:45:55 Java concept of t ... (Pramod Bablad) Beginners
Print Contiguous SubArray With Maximum Sum In Java
Problem : Write a Java program or function which takes an integer array as input and prints contiguous subarray with maximum sum. For exampl...
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11-09-2019 18:44:25 Java concept of t ... (Pramod Bablad) Beginners
Print Common Characters Between Two Strings In Alphabetical Order In Java
Problem : Write a Java program or function which takes two strings as input and print common characters between them in alphabetical order. ...
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03-09-2019 17:54:45 Java concept of t ... (Pramod Bablad) Beginners
Maximum Occurring Character In String In Java
Problem : Write a Java program or function to find most repetitive character or maximum occurring character in the given string. For example...
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02-09-2019 19:00:29 Java concept of t ... (Pramod Bablad) Beginners


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