52 lines
1.4 KiB
Java
52 lines
1.4 KiB
Java
package Sorting;
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import java.time.Duration;
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import java.time.Instant;
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import java.lang.Integer;
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/**
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* This is an abstract class, its subclasses will inherit its methods and instance
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* fields. Any abstract methods will have to be implemented in the subclasses.
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*/
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abstract class Sorter {
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protected String sortType;
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protected Integer[] numbers;
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protected long comparisonsUsed = 0;
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public Sorter(String st, String filename){
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sortType=st;
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RandomNumberFileReader reader = new RandomNumberFileReader(filename);
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numbers = new Integer[reader.getNumbers().size()];
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reader.getNumbers().toArray(numbers);
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}
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/**
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* An abstract sorting method. Each subclass will have to implement its own
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* version of this method.
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* @return A SortResult object holding number of comparisons, number of swaps, and the sorted array
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*/
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abstract void sort();
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void swap(int a, int b){
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int tmp = numbers[a];
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numbers[a] = numbers[b];
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numbers[b] = tmp;
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}
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int compare(int a, int b){
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comparisonsUsed++;
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return Integer.compare(a,b);
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}
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public SortResult measuredSort(){
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Instant start = Instant.now();
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this.sort();
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Instant end = Instant.now();
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Duration time = Duration.between(start,end);
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SortResult output = new SortResult(sortType, numbers, comparisonsUsed, time);
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return output;
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}
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} |