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- package ch.claude_martin;
- import java.util.Arrays;
- import java.util.Optional;
- import java.util.stream.Stream;
- public class SomeClass {
- static class Tuple implements Comparable<Tuple> {
- final int max;
- final int[] vector;
- public Tuple(int[] vector) {
- assert vector.length > 0;
- this.max = Arrays.stream(vector).max().getAsInt();
- this.vector = vector;
- }
- @Override
- public int compareTo(Tuple o) {
- return Integer.compare(o.max, this.max);
- }
- public int getMax() {
- return max;
- }
- public int[] getVector() {
- return vector;
- }
- }
- public static void main(String[] args) {
- final int[] v1 = { 3, 5 };
- final int[] v2 = { 3, 6 };
- final int[] v3 = {};
- final int[] v4 = { -1, Integer.MIN_VALUE };
- final Optional<Tuple> tuple = Stream.of(v1, v2, v3, v4).filter(v -> v.length > 0).map(v -> new Tuple(v)).sorted()
- .findFirst();
- if (tuple.isPresent())
- System.out.println(tuple.get().getMax() + " -> " + Arrays.toString(tuple.get().getVector()));
- else
- System.out.println("No data");
- }
- }
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