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How to use gdb in Ubuntu Terminal

Here's a practical, minimal guide for using GDB in Ubuntu terminal — from launching to setting breakpoints and navigating your code. 🧰 Step 1: Compile with Debug Symbols Use -g and disable optimizations ( -O0 preferred for debugging): bash Copy Edit g++ -g -O0 -o myprog myprog.cpp 🚀 Step 2: Launch GDB bash Copy Edit gdb ./myprog You'll see a (gdb) prompt. 🎯 Step 3: Set Breakpoints You can set breakpoints in three main ways : ✅ a. At a function gdb Copy Edit (gdb) break main ✅ b. At a specific file and line gdb Copy Edit (gdb) break myprog.cpp:42 ✅ c. At a method in a class gdb Copy Edit (gdb) break MyClass::doSomething If the symbol is mangled (C++), GDB usually demangles automatically, especially if compiled with -g . ▶️ Step 4: Run the Program gdb Copy Edit (gdb) run 🧭 Step 5: Navigate Command Meaning next or n Step over current line step or s Step into function call finish Run until current function returns continue or c Continue until...
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GBrad Ans for Hibernate vs JDBC

 JDBC and Hibernate are both Java frameworks that are used to connect to and interact with databases. JDBC is a lower-level framework that provides direct access to the database, while Hibernate is a higher-level framework that provides an object-relational mapping (ORM) layer.

JDBC

JDBC is a standard API that is part of the Java SE platform. It provides a set of classes and interfaces that can be used to connect to and interact with databases. JDBC is a lower-level framework that provides direct access to the database. This means that you have more control over the database, but it also means that you have to write more code.

Hibernate

Hibernate is an open-source ORM framework. It provides a higher-level abstraction over JDBC that makes it easier to interact with databases. Hibernate takes care of the mapping between Java objects and database tables, so you don't have to write as much code.

Which one should you use?

The choice of whether to use JDBC or Hibernate depends on your needs. If you need more control over the database, then you should use JDBC. If you want an easier and more declarative way to interact with databases, then you should use Hibernate.

Here is a table that summarizes the pros and cons of JDBC and Hibernate:

FeatureJDBCHibernate
Level of abstractionLowerHigher
Control over databaseMoreLess
Ease of useLessMore
Declarative mappingNoYes
Support for multiple databasesYesYes
Community supportLargeLarge

Ultimately, the best way to decide which framework to use is to try both and see which one you prefer.

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