Yusuf Şahin

Java ile çalışırken yapılan 10 temel hatayı çözümü ile anlatmış bir kaynak.

Aşağıdaki linkten ulaşabilirsiniz.

 http://www.javacoffeebreak.com/articles/toptenerrors.html

Java

http://www.ic.sunysb.edu/stu/yosong/cse219/junit.html

import org.junit.*;

public class ExampleTest {

    /**
     * methods annotated with @BeforeClass are
     * called once before the test methods run
     */
    @BeforeClass
    public static void setUpBeforeClass() {
        ;
    }
   
    /**
     * methods annotated with @AfterClass are
     * called once after all test methods run
     */
    @AfterClass
    public static void tearDownAfterClass() {
        ;
    }
   
    /**
     * methods annotated with @Before are
     * called before every test case method
     */
    @Before
    public void setUp() {
;
    }

    /**
     * methods annotated with @After are
     * called after every test case method
     */
    @After
    public void tearDown() {
;
    }
   
    /**
     * methods annotated with @Test are
     * your actual Unit Test methods
     * test using:
     *    Assert.assertEquals
     *    Assert.assertTrue
     *    Assert.assertFalse
     *    Assert.assertNotNull
     *    Assert.assertNull
     *    etc.
     */
    @Test
    public void firstTest() {
;
    }
   
    @Test
    public void secondTest() {
;
    }

    @Test(expected=Exception.class)
    public void checkExceptionTest() {
;
    }
}

Testing, Java

                   try {
                       Class.forName("com.mysql.jdbc.Driver");
                       Connection con = DriverManager.getConnection("jdbc:mysql://localhost/sakila", "yourUserName", "yourPassword");
                       PreparedStatement ps = con.prepareStatement("select customer_id,first_name,last_name from customer");
                       ResultSet rs = ps.executeQuery();

                                    while(rs.next()){

                                   System.out.println(rs.getInt("customer_id")
                                   +"-"+rs.getString("first_name")
                                   +" "+rs.getString("last_name"));
                                   }

                   } catch (Exception {
                              e.printStackTrace();
                             }
             }
}

Aşağıdaki gibi bir çıktı elde etmelisiniz.

Java