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1. int k=5; int d = –k + ‘A’ / k++;  System.out.println(d); –k: pre-decrement, k becomes 4. ‘A’ is 65 in ASCII. ‘A’ / k++: 65 / 4 = 16 (integer division), then k becomes 5 due to post-increment. d = 4 + 16 = 20. Output: 20 2. int k = 7; int d … Read more

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1.what is the difference between read() ,readline() and readlines() ? Ans.read() Feature Description Purpose Reads the entire file as a single string. Returns A single string (str) Usage file.read() or file.read(n) to read n characters Note Not memory-efficient for large files Example: f = open(“data.txt”, “r”) text = f.read() print(text) f.close() —————- What happens if … Read more

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In today’s digital world, programming is one of the most valuable and in-demand skills. Learning it at the school level gives you a huge advantage, not only for your future career but also in developing your problem-solving and logical thinking abilities. Whether you’re a beginner or already coding, there’s always room for improvement. Let’s explore … Read more

1. What is an operating system? An operating system acts as an interface between the user and the hardware. It is a system software that understands the language of both the user and the hardware. It makes the operations of the computer easy.  2. Draw the relationship diagram of the operating system, hardware, and user. … Read more

In today’s world, programming languages are everywhere, making tasks easier and more efficient. Among them, Python has risen to the top as one of the most versatile and user-friendly languages. From automation to data analysis, Python has a broad range of applications that can simplify and enhance many aspects of daily life. Whether you’re an … Read more