java read excel file into arraylist

reading an excel file in java can be accomplished using libraries such as apache poi or jexcelapi. in this tutorial, we'll focus on apache poi, as it is widely used and supports both .xls and .xlsx formats.

### prerequisites

- `poi-*.jar`
- `poi-ooxml-*.jar`
- `poi-ooxml-schemas-*.jar`
- `xmlbeans-*.jar`
- `commons-collections4-*.jar`
- `commons-compress-*.jar`

3. **ide**: use any java ide (such as intellij idea, eclipse, or netbeans) to write and run your java code.

### step-by-step guide to read an excel file into an arraylist

1. **setup your project**: include the downloaded apache poi jar files in your project's build path.

| name | age | city |
|--------|-----|------------|
| alice | 30 | new york |
| bob | 25 | los angeles |
| charlie| 35 | chicago |

3. **java code**: write the following java code to read the excel file and store the data in an `arraylist`.

### explanation of the code

1. **imports**: the necessary classes from apache poi and java are imported.

2. **person class**: this is a simple class that represents a person with `name`, `age`, and `city` attributes. the `tostring()` method is overridden to provide a readable representation.

3. **excelreader class**:
- **main method**: this is the entry point of the program.
- **file input stream**: opens the excel file for reading.
- **workbook and sheet**: a `workbook` object is created to represent the excel file and a `sheet` object to represent the f ...

#python arraylist to string
#python create arraylist
#python arraylist
#arraylist python length
#python arraylist append

python arraylist to string
python create arraylist
python arraylist
arraylist python length
python arraylist append
python arraylist equivalent
python arraylist last element
python arraylist contains
python arraylist max size
python arraylist example
python excel to csv
python excel
python excel add in
python excel writer
python excel reader
python excel to pdf
python excel library
python excel integration