Assume the code below, it is syntactically correct and has some missing details (Strings). ) Explain the code. () In the code, VAR1 is the only String variable with a value set. Explain the role of VARI in the code. Is it essential? If yes, why is it important? () All other variables VAR2, VAR3, VARA, VARS, VAR6, VAR7, VARB, and VAR9 have unset values but are used in the code. Explain the role of each of these variables in the code. (M) Provide proper string values for the variables VAR2, VAR3, VARA, VARS, VAR7, VAR8, and VARS.
Assume the code below, it is syntactically correct and has some missing details (Strings). ) Explain the code. () In the code, VAR1 is the only String variable with a value set. Explain the role of VARI in the code. Is it essential? If yes, why is it important? () All other variables VAR2, VAR3, VARA, VARS, VAR6, VAR7, VARB, and VAR9 have unset values but are used in the code. Explain the role of each of these variables in the code. (M) Provide proper string values for the variables VAR2, VAR3, VARA, VARS, VAR7, VAR8, and VARS.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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![Assume the code below; it is syntactically correct and has some missing details (Strings). (i) Explain the code. (ii) In the code, VAR1 is the only String variable with a value set. Explain the role of VAR1 in the code. Is it essential? If yes, why is it important? (ii) All other variables VAR2, VAR3, VAR4, VAR5, VAR6, VAR7, VAR8, and VAR9
have unset values but are used in the code. Explain the role of each of these variables in the code. (iv) Provide proper string values for the variables VAR2, VAR3, VAR4, VARS, VAR7, VAR8, and VAR9.
public class Mariadb {
static final String VAR1 =
static final String VAR2 =
static final String VAR3
static final String VAR4 =
static final String VAR5
static final String VAR6 = VAR2 + "://" + VAR3 +
"org.mariadb.jdbc.Driver";
"":
":"
+ VAR4 + "/" + VAR5;
static final String VAR7 = "";
static final String VAR8 = "";
public static void main (String[] args) {
Connection conn = null;
Statement stmt = null;
try {
Class.forName( VAR1 );
conn = DriverManager.getConnection ( VAR6, VAR7, VAR8 );
stmt = conn.createStatement ();
String VAR9 = "";
stmt.executeUpdate (VAR9);
} catch (SQLException se) { se.printStackTrace (); }
catch (Exception e) {e.printStackTrace (); }
finally {
try {
if (stmt != null) { conn.close (); }
} catch (SQLException se) {}
try {
if (conn != null) { conn.close(); }
} catch (SQLException se) { se.printStackTrace (); }
}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F20302e94-d3c6-4f09-bbaa-13fc40177676%2F30749d56-0561-4c61-8250-8b757921f58d%2F4l2c03z_processed.png&w=3840&q=75)
Transcribed Image Text:Assume the code below; it is syntactically correct and has some missing details (Strings). (i) Explain the code. (ii) In the code, VAR1 is the only String variable with a value set. Explain the role of VAR1 in the code. Is it essential? If yes, why is it important? (ii) All other variables VAR2, VAR3, VAR4, VAR5, VAR6, VAR7, VAR8, and VAR9
have unset values but are used in the code. Explain the role of each of these variables in the code. (iv) Provide proper string values for the variables VAR2, VAR3, VAR4, VARS, VAR7, VAR8, and VAR9.
public class Mariadb {
static final String VAR1 =
static final String VAR2 =
static final String VAR3
static final String VAR4 =
static final String VAR5
static final String VAR6 = VAR2 + "://" + VAR3 +
"org.mariadb.jdbc.Driver";
"":
":"
+ VAR4 + "/" + VAR5;
static final String VAR7 = "";
static final String VAR8 = "";
public static void main (String[] args) {
Connection conn = null;
Statement stmt = null;
try {
Class.forName( VAR1 );
conn = DriverManager.getConnection ( VAR6, VAR7, VAR8 );
stmt = conn.createStatement ();
String VAR9 = "";
stmt.executeUpdate (VAR9);
} catch (SQLException se) { se.printStackTrace (); }
catch (Exception e) {e.printStackTrace (); }
finally {
try {
if (stmt != null) { conn.close (); }
} catch (SQLException se) {}
try {
if (conn != null) { conn.close(); }
} catch (SQLException se) { se.printStackTrace (); }
}
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