Pair

java.lang.Object
- org.tweetyproject.commons.util.Pair<E,F>

Type Parameters:

E - the type of the first element

F - the type of the second element

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

Division
```
public class Pair<E,F>
extends java.lang.Object
implements java.io.Serializable
```
This class implements a simple pair of elements.

Author:

Matthias Thimm, Bastian Wolf

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

Pair()
Initializes an empty pair.

Pair(E obj1, F obj2)
Initializes the elements of this pair with the given parameters

Method Summary

Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object obj)`
`E`	`getFirst()`	returns the first element of this pair
`F`	`getSecond()`	returns the second element of this pair
`int`	`hashCode()`
`void`	`setFirst(E obj1)`	sets the first element of this pair
`void`	`setSecond(F obj2)`	sets the second element of this pair
`java.lang.String`	`toString()`	returns a string representation of a pair as "(obj1, obj2)"

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - Pair
```
public Pair()
```
    Initializes an empty pair.
  - Pair
```
public Pair(E obj1,
            F obj2)
```
    Initializes the elements of this pair with the given parameters
    
    Parameters:
    
    obj1 - the first element of this pair
    
    obj2 - the second element of this pair
- Method Detail
  - getFirst
```
public E getFirst()
```
    returns the first element of this pair
    
    Returns:
    
    the first element of this pair
  - setFirst
```
public void setFirst(E obj1)
```
    sets the first element of this pair
    
    Parameters:
    
    obj1 - an object of type E
  - getSecond
```
public F getSecond()
```
    returns the second element of this pair
    
    Returns:
    
    the second element of this pair
  - setSecond
```
public void setSecond(F obj2)
```
    sets the second element of this pair
    
    Parameters:
    
    obj2 - an object of type F
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class java.lang.Object
  - toString
```
public java.lang.String toString()
```
    returns a string representation of a pair as "(obj1, obj2)"
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    a string representation of a pair as "(obj1, obj2)"