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Mengakses Elemen Aray

Mengakses Elemen Aray. public class array {    public static void main (String args[])     { int nilai []=new int[3];   nilai[0]=70; nilai[1]=80; nilai[2]=65; double ratarata=0.0; for (int i=0; i<nilai.length; i++) ratarata+=nilai[i]; ratarata/=nilai.length; System.out.println("Nilai rata-rata = " + ratarata);   }   } import java.text.NumberFormat; public class array2 {   public static void main(String args[])   { NumberFormat nf=NumberFormat.getInstance(); nf.setMaximumFractionDigits(3); int nilai[][]=new int[2][3]; nilai[0][0]=85; nilai[0][1]=81;   nilai[0][2]=78;   nilai[1][0]=65;   nilai[1][1]=73;   nilai[1][2]=71;   String MK[]={"RPL", "PBO"};   double ratarataMK[]=new double[nilai.length];   for (int i=0; i<nilai.length; i++)   {   for (int j=0; j<nilai[0].length; j++)   {   ratarataMK[i]+=nilai[i][j];   }   ratarataMK[i]/=nilai[0].length;   }   System.out.println("Nilai Mata Kuliah\n");   System.out.println("MK\tMinggu\tM