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Add generic methods that allows to get next or previous elements in given array.

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BONNe 2019-09-05 13:23:19 +03:00 committed by BONNe1704
parent 28d61870a7
commit e900f1e665
1 changed files with 56 additions and 0 deletions
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56
src/main/java/world/bentobox/challenges/utils/Utils.java
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@ -95,4 +95,60 @@ public class Utils
map(gameModeAddon -> gameModeAddon.getDescription().getName()).
orElse(null);
}
/**
* This method allows to get next value from array list after given value.
* @param values Array that should be searched for given value.
* @param currentValue Value which next element should be found.
* @param <T> Instance of given object.
* @return Next value after currentValue in values array.
*/
public static <T extends Object> T getNextValue(T[] values, T currentValue)
{
for (int i = 0; i < values.length; i++)
{
if (values[i].equals(currentValue))
{
if (i + 1 == values.length)
{
return values[0];
}
else
{
return values[i + 1];
}
}
}
return currentValue;
}
/**
* This method allows to get previous value from array list after given value.
* @param values Array that should be searched for given value.
* @param currentValue Value which previous element should be found.
* @param <T> Instance of given object.
* @return Previous value before currentValue in values array.
*/
public static <T extends Object> T getPreviousValue(T[] values, T currentValue)
{
for (int i = 0; i < values.length; i++)
{
if (values[i].equals(currentValue))
{
if (i > 0)
{
return values[i - 1];
}
else
{
return values[values.length - 1];
}
}
}
return currentValue;
}
}