tugas pemprograman java

NO 1

 public class One {
    public static void main(String[] args) {
        int a,b;
       
        for (a=8;a>=1; a--){
            for (b=1; b<=a; b++){
                System.out.print(a);
            }
            System.out.println();
        }
            
    }
 


NO. 2

package tugas;

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.io.IOException;

public class Nilai_Rata2_BufferedReader {

      public static void main(String [] args){

            BufferedReader input = new BufferedReader(new InputStreamReader(System.in));

                        String n="", m="", o="";          

                        try{

                        System.out.print("Masukkan angka pertama = ");

                        x = input.readLine();

                        System.out.print("Masukkan angka kedua = ");

                        y = input.readLine();

                        System.out.print("Masukkan angka ketiga = ");

                        z = input.readLine();}

                        catch (IOException e){}

                             

                        int bil1, bil2, bil3, rata;

                             

                        bil1 = Integer.parseInt(x);

                        bil2 = Integer.parseInt(y);

                        bil3 = Integer.parseInt(z);

                             

                        rata = (bil1 + bil2 + bil3)/3;

                             

                         System.out.println("Rata-rata nilai Anda: "+ rata);

                                 if (rata >= 60){System.out.println(":-)");

                                 }

                            else { 

                         System.out.println(":-(");                                         }

        }

      }