Tugas1

import java.text.NumberFormat;
public class Tugas1 {
public static void main(String args[]) {
    NumberFormat nf=NumberFormat.getInstance();
    nf.setMaximumFractionDigits(3);
    int nilai[][]=new int[4][3];
    nilai[0][0]=81; nilai[0][1]=90; nilai[0][2]=62;
    nilai[1][0]=50; nilai[1][1]=83; nilai[1][2]=87;
    nilai[2][0]=89; nilai[2][1]=55; nilai[2][2]=65;
    nilai[3][0]=77; nilai[3][1]=70; nilai[3][2]=92;
    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("NRP\tRata-Rata");
    System.out.println("=================");
    for (int i=0; i<nilai.length; i++) {
        System.out.print((i+1)+"\t");
        System.out.print(nf.format(ratarataMK[i])+"\n");
    }
  }
}