Verifica

public class Verifica {
    static int x=7;
    static int y=6;
    public static int[][] caricamat(){
        int mat[][]= { {106,107,111,133,221,767,1766},
                {502,635,809,947,1402,3634,5268},
                {2,2,2,6,13,30,46},
                {163,203,276,408,547,729,628},
                {2,7,26,82,172,307,392},
                {16,24,38,74,167,511,809}};
        return mat;

    }
    public static String[] caricaconts(){
        String conts[]={"Africa", "Asia", "Austr", "Europa", "Norda", "Suda"};
        return conts;
    }
    public static int[] caricaanni(){
        int anni[]={1750,1800,1850,1900,1950,2000,2500};
        return anni;
    }
    public static int[] popolazionemon(int mat[][]){
        int popmon[]=new int[x];
        for(int i=0; i<x; i++){
            for(int j=0; j<y; j++){
                popmon[i]+=mat[j][i];
            }
        }
        return popmon;
    }
    public static void stampatutto(int mat[][], String conts[], int anni[]){
        System.out.print("continenti");
        for(int i=0; i<x; i++){
            System.out.print("\t"+anni[i]);
        }

        for(int i=0; i<y; i++){
            System.out.print("\n"+conts[i]+"\t");
            for(int j=0; j<x; j++){
                System.out.print("\t"+mat[i][j]);
            }
        }
    }
    public static int[] indiceincr(int mat[][], int anni[]){
        int pos[]=new int[6];
        for(int j=0; j<y; j++){
            double max=-99999;
            for(int i=0; i<anni.length-1; i++){
                double aum1= mat[j][i+1]-mat[j][i];
                double aum2= aum1/mat[j][i];
                double aumf= aum2*100;
                if(aumf>max){
                    pos[j]=i;
                    max=aumf;
                }
            }
        }
        return pos;
    }
    public static void stampaincr(int anni[], int pos[], String conts[]){
        System.out.println("\n");
        for(int i=0; i<y; i++){
            System.out.println(conts[i]+"\t"+anni[pos[i]]+" "+anni[pos[i]+1]);
        }
    }

    public static void main(String[] args) {
        int mat[][]=caricamat();
        String conts[]=caricaconts();
        int anni[]=caricaanni();
        popolazionemon(mat);
        stampatutto(mat, conts, anni);
        int[] pos=indiceincr(mat, anni);
        stampaincr(anni, pos, conts);
    }

}