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java debugging tutorial

debugging is an essential part of software development, allowing developers to identify and fix issues in their code. this tutorial will walk you through how to run and debug a java application using the eclipse ide, one of the most popular java ides. we'll also cover some debugging techniques and provide a simple code example.

#### prerequisites

**java development kit (jdk)**: make sure you have jdk installed on your machine.
**eclipse ide**: download and install eclipse ide for java developers from the [eclipse website](https://www.eclipse.org/downloads/).

#### setting up your java project

1. *open eclipse* and create a new java project:
go to `file` `new` `java project`.
enter a project name (e.g., `debugexample`) and click `finish`.

2. **create a java class**:
right-click on the `src` folder of your project.
go to `new` `class`.
name your class (e.g., `calculator`) and check the box to include the `main` method. click `finish`.

#### sample code

here’s a simple `calculator` class that performs basic arithmetic operations:



in this code, we have a `calculator` class that performs addition, subtraction, multiplication, and division. the `divide` method throws an exception if the divisor is zero.

#### running the java application

1. **run the application**:
right-click on the `calculator.java` file in the project explorer.
select `run as` `java application`.

you should see the output in the console, but the program will crash due to the division by zero. the exception will be printed in the console.

#### debugging the java application

1. **setting breakpoints**:
open the `calculator.java` file.
click on the left margin next to the line number where you want to set a breakpoint (e.g., on the line with `return a / b;` in the `divide` method). a blue dot should appear, indicating a breakpoint is set.

2. **start debugging**:
right-click on `calculator.java` again. ...

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