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## com.sun.javatest.util
Class Fifo

    java.lang.Object
      com.sun.javatest.util.Fifo

    public class Fifo

extends java.lang.Object

A simple variable length first-in first-out queue.

Constructor Summary
`Fifo()` Create a buffer with a default initial size.
`Fifo(int initialSlots)` Create a buffer with a specified initial size.

Method Summary
`void` | `flush()` Flush all entries from the buffer.
`void` | `insert(java.lang.Object obj)` Insert an entry into the buffer.
`boolean` | `isEmpty()` Check if the buffer has an entries or not.
`java.lang.Object` | `remove()` Remove an entry from the buffer if one is available.
`int` | `size()` Return the number of entries currently in the fifo.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Fifo

    public Fifo()

  Create a buffer with a default initial size.

### Fifo

    public Fifo(int initialSlots)

  Create a buffer with a specified initial size.

  Parameters:
    `initialSlots` - The number of initial slots in the buffer; the number of slots required by the buffer will be expanded as required.

Method Detail

### isEmpty

    public boolean isEmpty()

  Check if the buffer has an entries or not.

  Returns:
    true if the buffer has no entries, and false otherwise.

### size

    public int size()

  Return the number of entries currently in the fifo.

  Returns:
    The number of entries currently in the fifo

### insert

    public void insert(java.lang.Object obj)

  Insert an entry into the buffer. The buffer will be increased in size if necessary to accommodate the new entry.

  Parameters:
    `obj` - The object to be inserted. It must not be null.

### remove

    public java.lang.Object remove()

  Remove an entry from the buffer if one is available.

  Returns:
    The next object in line to be removed, if one is available, or null if none are available.

### flush

    public void flush()

  Flush all entries from the buffer.

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