Contoh Soal dan Jawaban Pemrograman Java 2

Contoh Soal dan Jawaban Pemrograman Java 2

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Hasil gambar untuk Java

I.    ESSAY TERSTRUKTUR

1.       Perintah untuk melakukan kompilasi terhadap berkas program  java adalah  a)  ........... sedangkan untuk menjalankan program java adalah  b). ........

2.       Stream yang berguna untuk mengirim keluaran ke layar monitor  adalah  a)......  sedangkan untuk menerima masukan dari  keyboard adalah  b)........

3.       Arsitektur  Java  untuk  membuat aplikasi berbasis web  adalah  a)......  ,  dan untuk  program java standar adalah b) ........,  sedangkan untuk aplikasi mobile adalah c)........

4.       Untuk penulisan komentar beberapa baris pada program java supaya tidak akan diproses oleh ‘virtual mechine’, caranya adalah dengan memberikan tanda awal yaitu tanda a)….. dan diakhiri dengan tanda b)…., sedangkan komentar untuk satu baris dapat menggunakan tanda c) ….

5.       Sebutkan 2(dua)  kelompok “Error” dalam pemograman java?

6.       Sebutkan 3 contoh sintak yang dapat mengakibatkan  sintak error !

7.       Sebutkan minimal sepuluh buah katakunci bahasa java (Java Keyword) yang kalian ketahui!

8.       Sebutkan type data primitif  dalam bahasa Java!

9.       Sebutkan lima keywords yang digunakan oleh Java untuk menangani exception!

10.   Aplikasi program Java diciptakan dengan file teks berekstensi a).....Program ini dikompilasi menghasilkan satu berkas bytecode yang berekstensi b) .....

II. ESSAY TERURAI

1.      Jelaskan pengertian Object  dalam bahasa java
2.      Jelaskan pengertian Class dalam bahasa java
3.      Jelaskan secara singkat proses kompilasi dan menjalankan program aplikasi berorientasi obyek !
4.      Jelaskan secara singkat pengertian atribut,  sintak dan contohnya !
5.      Jelaskan secara singkat dan berikan contoh pengertian method
----- SELAMAT MENGERJAKAN -----
Kunci Jawaban :

I.       Essay Terstruktur

1.       Perintah untuk melakukan kompilasi terhadap berkas program  java adalah
a.       javac namafile.java
b.      Sedangkan untuk menjalankan program java adalah  java filejava

2.       a.   Stream.in
b.   Stream.out
3.       a.   J2ME merupakan program java untuk aplikasi Mobile divice/ Wireless divice
      b.      J2SE  dikenal sebagai bahasa Java.
      c.   J2EE untuk aplikasi WEB

4.     a.  /*
         b.  */
         c.  //

5.     a. Sintak error
         b. Runtime Error
6.        a. Salah penggunaan huruf besar atau huruf kecil
  b. Tidak mengakhiri perintah dengan ;
  c.  Penggunaan tanda kurung yang tidak tepat

7.     Abstract, Default,if, private, this, Boolean, Do    , implements, protected ,throw, Break,
        Double,  import, public, throws, Byte, Else, instanceof,  return,  transient, Case,
        Extends, int,  short, try
8.       8 type data primitif  dalam bahasa Java adalah boolean (untuk bentuk logika), char (untuk bentuk tekstual), byte, short, int, long (integral), double and float (floating point)

9.      Try, Catch, Throw, Throws, Finaly

10.   .java dan .class


II.    Essay Terurai

1.      Object dalam bahasa java adalah kombinasikan/gabungan data dan fungsi untuk mengakses data menjadi sebuah kesatuan unit yang merupakan turunan/instantiasi dari suatu class

2.      Class adalah suatu abstraksi program java yang didalamnya ada data dan method

3.      Buat file java dalam suatu teks editor, simpan file tersebut dengan ekstensi file .java
Namafile harus sama dengan class yang dibuat, kemudian compile dengan perintah javac. Setelah dicompile jalankan program tersebut dengan perintah java “namafile” hasil compile tanpa ekstensi.

4.      Atribut adalah sekumpulan data berupa variabel yang menggambarkan objek.
Sintaks Deklarasi Atribut
<modifier><type><name>[=<default_value>];
Contoh sintak untuk atribut : private int nis = 369;

5.      Method adalah perilaku dari suatu objek yang merupakan bagian-bagian kode program yang dapat dipanggil oleh program utama atau dari method lainnya untuk menjalankan fungsi yang spesifik.
Sintaks  : <modifier><returnType><name>(<parameter>*){ <statement>* }
Contoh
public class StudentRecord {
Private String name;
public String ;
getName();       //method!
      { return name; } }


Petunjuk Penulisan Method/Program:
1. Nama method harus dimulai dengan huruf kecil
2. Nama method harus berupa katakerja
3. Gunakan dokumentasi sebelum mendeklarasikan sebuahmethod .dengan menggunakan JavaDoc.

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