Merging and sorting two arrays of strings is a common programming task, especially in scenarios like data processing, lexicographic ordering, and database query results. In this article, we will write a Java program to merge two string arrays and sort the combined array alphabetically. Understanding the Problem We are given two separate arrays of strings …
Comparing two arrays to find common elements is a common programming challenge, often used in search algorithms, database queries, and data processing. Using different techniques, this article will demonstrate efficient ways to find common strings from two arrays. Understanding the Problem Given two arrays of strings, we need to identify strings that appear in both arrays. …
Splitting strings is a common operation in Java, especially when processing structured data. In this article, we will split each string in an array using a given delimiter and reconstruct the array with the resulting parts. Understanding the Problem We are given an array of strings, where each string contains multiple words or elements separated …
String concatenation is a common operation in Java, often used in formatting data for output, logs, or structured text. In this article, we will learn how to concatenate all strings from an array using a specified delimiter. Understanding the Problem Given an array of strings, we need to join them into a single string with …
Checking if a string contains only unique characters is a common problem in Java programming and frequently appears in coding interviews. This article explains how to find strings in an array where all characters are unique. Problem statement: Write a Java program to find strings where all characters are unique (i.e., no character repeats) in …
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When dealing with string processing problems in Java, a common interview question is to find the longest common prefix among an array of strings. In this article, we will discuss an efficient approach to solve this problem using Java. Problem Statement: Given an array of strings, write a Java program to find the longest common …
Filtering unwanted strings from an array based on a specific substring is a common task in Java programming. In this article, we will explore how to remove all strings that contain a given substring from an array using Java. Problem statement: Given an array of strings and a specific substring, we want to create a …
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This article explains how to find strings containing only numbers in an array efficiently using Java. When preparing for Java interviews, logical problem-solving skills play a crucial role. Problem statement: Write a Java program that identifies strings in an array that consist only of numeric characters (digits 0-9). Approach to Solve the Problem We will …
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In this article, we will learn how to write a Java program to identify strings in an array that end with a given character. This problem is useful for practicing string manipulation and array traversal in Java. Problem Description: We are given an array of strings and a specific character. The task is to identify …
In this article, we will learn how to write a Java program to generate all possible permutations of strings in an array and store them in a new array. This is a great exercise for practicing recursion and backtracking in Java. Problem statement: We are given an array of strings, and the task is to …