# Class: com.pnfsoftware.jeb.util.base.Couple

Handy class holding two typed elements. Null values are allowed.

## Constructor: Couple
- parameter: `a`, type: `A`
- parameter: `b`, type: `B`


## Method: equals
- parameter: `obj`, type: `java.lang.Object`
- return type: `boolean`


## Method: getFirst
- return type: `A`


## Method: getSecond
- return type: `B`


## Method: hashCode
- return type: `int`


## Method: setFirst
- parameter: `a`, type: `A`


## Method: setSecond
- parameter: `b`, type: `B`


## Method: toString
- return type: `java.lang.String`


## Static Method: getFirstElements
- parameter: `couples`, type: `java.util.Collection<com.pnfsoftware.jeb.util.base.Couple<A,B>>`
- return type: `java.util.Collection<A>`


## Static Method: getSecondElements
- parameter: `couples`, type: `java.util.Collection<com.pnfsoftware.jeb.util.base.Couple<A,B>>`
- return type: `java.util.Collection<B>`


