Master Java Substrings or Fall for This Classic Mistake! 🎯⚠️

📢 Description: Can you predict the output of this Java substring puzzle? Let's break it down step by step! 🚀 #Java #CodingChallenge 🔢 Question: What will...

Wiingy AP Computer Science939 views0:18

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📢 Description: Can you predict the output of this Java substring puzzle? Let's break it down step by step! 🚀 #Java #CodingChallenge 🔢 Question: What will be printed by the following Java code? java Copy Edit String s = "Computer Science is fun!"; String s1 = s.substring(0,8); String s2 = s1.substring(1); String s3 = s2.substring(1,3); System.out.println(s3); (A) mput (B) mpu (C) mp ✅ (D) omp Quick Breakdown: 1️⃣ Extracting s1: java Copy Edit s1 = s.substring(0,8); This gives "Computer" (characters from index 0 to 7). 2️⃣ Extracting s2: java Copy Edit s2 = s1.substring(1); Removes the first character 'C', leaving "omputer". 3️⃣ Extracting s3: java Copy Edit s3 = s2.substring(1,3); Takes characters from index 1 to 3 in "omputer", which is "mp". 🎯 Final Answer: Option C! 🚀 Key Takeaways: ✔ substring(start, end) extracts characters from start index to end index - 1. ✔ Java strings are zero-based, so counting starts from index 0. ✔ Understanding how substring() works is crucial for coding interviews & exams! 📌 Got it? Comment below & don’t forget to like & subscribe for more coding tricks! 🎯🔥 #JavaCoding #Programming #Substring #InterviewQuestions 🚀

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Published
Mar 17, 2025

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