> For the complete documentation index, see [llms.txt](https://willking.gitbook.io/rebb-val/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://willking.gitbook.io/rebb-val/master.md).

# Getting Started

## Try RebbVal

Simply create a `RebbVal` object and call `val` function

```java
// initialize a instance of Rebb Val
Valid v = new Valid();

// validates the input (100) is greater than 10(>10)
v.val(100,">10") // true

//or, is the input is less than 20?
v.val(100,"<20") //false
```

More validation rules

```java
// if the input is greater than or equal to 18 and less then or equal to 60
v.val(50, "between 18 and 60") // true
// same as previous one, two dots represents a range
v.val(50, "[18..60]") // true

// greater than 18 and less than 60
v.val(60, "(18..60)" // false
// you can combine them
v.val(60, "(18..60]") //true
v.val(18, "[18..60)") //false
```

And you can combine two or more rules with `and` and `or`

```java
v.val(60, ">18 and <60") // false

v.val(60, ">18 or <60") // true
```