Package uk.ac.starlink.util
Class Pair<T>
- java.lang.Object
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- uk.ac.starlink.util.Pair<T>
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public class Pair<T> extends java.lang.ObjectAggregates two objects of the same type. This utility class does not do anything clever.- Since:
- 12 Sep 2019
- Author:
- Mark Taylor
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanequals(java.lang.Object o)TgetItem1()Returns this pair's first item.TgetItem2()Returns this item's second item.inthashCode()static <S> Pair<S[]>splitArray(S[] in)Splits an array into two consituent parts.static <S> Pair<java.util.Collection<S>>splitCollection(java.util.Collection<S> in)Splits a collection into two constituent parts.java.lang.StringtoString()
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Method Detail
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getItem1
public T getItem1()
Returns this pair's first item.- Returns:
- item
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getItem2
public T getItem2()
Returns this item's second item.- Returns:
- item
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hashCode
public int hashCode()
- Overrides:
hashCodein classjava.lang.Object
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equals
public boolean equals(java.lang.Object o)
- Overrides:
equalsin classjava.lang.Object
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toString
public java.lang.String toString()
- Overrides:
toStringin classjava.lang.Object
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splitCollection
public static <S> Pair<java.util.Collection<S>> splitCollection(java.util.Collection<S> in)
Splits a collection into two constituent parts.- Parameters:
in- input collection; unaffected on exit- Returns:
- pair of non-null collections (currently Lists), each containing about half of the input collection
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splitArray
public static <S> Pair<S[]> splitArray(S[] in)
Splits an array into two consituent parts.- Parameters:
in- input array; unaffected on exit- Returns:
- pair of non-null arrays, each containing about half of the input array
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