Rian Bahtiar Blog

1. public class NilaiUjian {
   private String nama;
   private doube nilai;
   public NilaiUjian (String anama, double anilai) {
   nama = anama;
   nilai = anilai;
   }
   public String KeteranganNilai() {
   String Keterangan = “”;
   if (nilai =90) {
   Keterangan = “grade A”;
   } else if (nilai=80) {
   Keterangan = “grade B”;
   } else if (nilai=70) {
   Keterangan = “grade C”;
   } else if (nilai=60) {
   Keterangan = “grade D”;
   } else if (nilai=0) {
   Keterangan = “grade E”;
   } else {
   Keterangan = “Nilai tidak valid”;
   }
   return “nilai “+ nama +” = ” + nilai + ” ;KeteranganNilai = “+ Keterangan;
   }
   }
   
   public class CobaNilaiUjian {
   public static void main(String [] args) {
   NilaiUjian nilaiUjian1 = new NilaiUjian(“Emha Taufiq L\t”,98.0);
   NilaiUjian nilaiUjian2 = new NilaiUjian(“wahyu Sejati\t”,70.0);
   NilaiUjian nilaiUjian3 = new NilaiUjian(“Agus Wibowo\t”,85.0);
   NilaiUjian nilaiUjian4 = new NilaiUjian(“Ibnu Rosyadi\t”,55.0);
   System.out.println(nilaiUjian1.KeteranganNilai());
   System.out.println(nilaiUjian2.KeteranganNilai());
   System.out.println(nilaiUjian3.KeteranganNilai());
   System.out.println(nilaiUjian4.KeteranganNilai());
   }
   package com.pbo.java;
   import java.util.*;
   public class LuasLingkaran
   {
   public static void main(String args[]){
   final double x=3.14;
   double y;
   double z;
   Scanner in = new Scanner(System.in);
   System.out.println(“”);
   System.out.println(“Menghitung Luas Lingkaran …”);
   System.out.print(“Masukan jari-jari :”);
   y=in.nextDouble();
   z=x*y*y;
   System.out.println(“Luas = ” + z);
   }
   }