Question

Java - how to get the minimum distance between array list elements? Code.

Answer 1

import java.util.ArrayList;

//TestCode.java
class TestCode {
    public static int getMinDistance(ArrayList<Integer> list){
        int dist = Integer.MAX_VALUE;
        for(int i = 0;i<list.size();i++){
            for(int j = 0;j<list.size();j++){
                if(i!=j){
                    if(dist > Math.abs(list.get(i)-list.get(j))){
                        dist = Math.abs(list.get(i)-list.get(j));
                    }
                }
            }
        }
        return dist;
    }

    public static void main(String [] args){
        ArrayList<Integer> list = new ArrayList<>();
        list.add(35);
        list.add(67);
        list.add(4435);
        list.add(445);
        list.add(485);
        list.add(25);

        //35-25 = 10
        System.out.println("Minimum distance = "+ getMinDistance(list));
    }
}

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