ForEachWithIndex (cactoos 0.55.0 API)

java.lang.Object
- org.cactoos.proc.ForEachWithIndex<X>

Type Parameters:

X - The type to iterate over

All Implemented Interfaces:

Proc<Iterable<X>>
```
public final class ForEachWithIndex<X>
extends Object
implements Proc<Iterable<X>>
```
Executes a BiProc for each element of an Iterable
This class can be effectively used to iterate through a collection similar to how Stream.forEach(java.util.function.Consumer) works except this class also passes the index of the current element to the proc:
new ForEachWithIndex( new BiProcOf<>((input, index) -> System.out.printf("%d: \'%s\' ", index + 1, input)), ).execute( new IterableOf<>("Mary", "John", "William", "Napkin") ); // will print 1: 'Mary' 2: 'John' 3: 'William' 4: 'Napkin' to standard output
There is no thread-safety guarantee.

Since:

1.0

- Constructor Summary
  
  Constructors
  Constructor Description
  
  ForEachWithIndex(BiProc<X,Integer> proc)
  Ctor.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  void exec(Iterable<X> input)
  Execute it.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ForEachWithIndex
```
public ForEachWithIndex(BiProc<X,Integer> proc)
```
    Ctor.
    
    Parameters:
    
    proc - The proc to execute
- Method Detail
  - exec
```
public void exec(Iterable<X> input)
          throws Exception
```
    Description copied from interface: Proc
    
    Execute it.
    
    Specified by:
    
    exec in interface Proc<X>
    
    Parameters:
    
    input - The argument
    
    Throws:
    
    Exception - If fails