Oracle-Java Standard Edition 5 and 6, Certified Associate Exam

1.

Given: 1. class Test { 2. public static void main(String args[]) { 3. String str = new String("Welcome"); 4. // insert code here 5. } 6. } Which, inserted at line 4, produces the output true?

System.out.println(str.trim()); System.out.println(str.startsWith("W")); System.out.println(str.indexOf("W")); System.out.println(str.startsWith('W')); System.out.println(str.indexOf(1));

2.

Which is NOT a correct statement about entity beans?

They are persisted using BMP and CMP. They are used to share data among clients. They are used to store persistent data. They are used to implement business processes. They are used to represent data stored in an RDBMS.

3.

Which is valid?

package com.example; class Test { } import java.util.*; package com.example;import java.util; import java.*; class Test { } package com.example;import java.util.*; import java.io.*; class Test { } import java.util.*;package com.example; class Test { } package com.example;package com.sun; import java.util.*; class Test { }

4.

What is the definition of the acronym SQL?

Special Queue Language Structured Query Language Special Query Language Structured Queue Language System Query Language

5.

Which is true?

The JDBC API is included in J2SE. JDBC is used to connect to MOM (Message-Oriented Middleware) products. All JDBC drivers are pure Java. The JDBC API is an extension of the ODBC API.

6.

Given that TestClass relies on classes in the someJar.jar file in /some/dir, which javac invocation will correctly compile TestClass in the current directory?

javac -classpath /some/dir/someJar.jar ./TestClass javac -classpath /some/dir/someJar.jar ./TestClass.java javac -classpath /some/dir/*.jar *.java javac ./*.java javac -classpath someJar.jar -sourcepath . TestClass.java

7.

A Java programmer wants to develop a small application to run on mobile phones. Which Java edition (or editions) are required to develop the application?

only J2ME J2SE and J2EE only J2EE J2SE and J2ME only J2SE

8.

Which Java technology provides a standard API for relational database access?

JDC JMS JSP JNDI JDBC

9.

Which is true?

You must use JDBC to connect an RDBMS to a Java application. JDBC is designed to provide a bridge between servlets and EJB technology. Classes in the JDBC API include implementations of JDBC drivers. The JDBC API is located within the java.sql and javax.sql packages.

10.

Which package contains classes to read from, and write to, files?

java.net javax.swing javax.file java.util java.io

Oracle-Java Standard Edition 5 and 6, Certified Associate Exam

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Oracle-Java Standard Edition 5 and 6, Certified Associate Exam

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