Ocajp 8 Vs Jr Foundation 8

The biggest differences are that the Junior exam is not a valid pre-req for the OCP exam. The OCA covers many of the same objectives as the Junior Associate. The Junior Associate covers a few topics that are not on the regular OCA:

Real world applications of Java - this is things that were on the Java 5/6 associate exam sections 5-7 such as being able to explain what applets/servlets/ejb/jdbc are.

Knowing what the JRE/JDK are for - most Java books cover this because it so so basic

Compiling/running at the command line - most Java books cover this because it so so basic

String formatting using %s, %d and %n

The Random and Math classes

Using the Iterator class

Using the compareTo method (just what it returns - not the difference between Comparable and Comparator)

OCA 8 Objective	OCP 8 Text	Java Foundations Junior Associate Coverage
Java Basics
1.1	Define the scope of variables	not on junior associate exam
1.2	Define the structure of a Java class	2.3
1.3	Create executable Java applications with a main method; run a Java program from the command line; including console output.	2.4
1.4	Import other Java packages to make them accessible in your code	3.4
1.5	Compare and contrast the features and components of Java such as: platform independence, object orientation, encapsulation, etc.	1.1
Working With Java Data Types
2.1	Declare and initialize variables (including casting of primitive data types)	4.1
2.2	Differentiate between object reference variables and primitive variables	not on junior associate exam
2.3	Know how to read or write to object fields	12.3, 12.4
2.4	Explain an Object's Lifecycle (creation, "dereference by reassignment" and garbage collection)	not on junior associate exam
2.5	Develop code that uses wrapper classes such as Boolean, Double, and Integer.	implied in 11.2
Using Operators and Decision Constructs �
3.1	Use Java operators; including parentheses to override operator precedence	5.1, 5.2, 5.3, 5.4, 5.5, 5.6
3.3	Test equality between Strings and other objects using == and equals ()	8.3, 8.4
3.4	Create if and if/else constructs and ternary constructs	8.1
3.5	Use a switch statement	8.2
Creating and Using Arrays
4.1	Declare, instantiate, initialize and use a one-dimensional array	11.1
4.2	Declare, instantiate, initialize and use multi-dimensional array	not on junior associate exam
Using Loop Constructs
5.1	Create and use while loops	9.3
5.2	Create and use for loops including the enhanced for loop	9.4
5.3	Create and use do/while loops	9.4
5.4	Compare loop constructs	9.1, 9.5
5.5	Use break and continue �	9.6
Working with Methods and Encapsulation
6.1	Create methods with arguments and return values; including overloaded methods	13.1, 13.3
6.2	Apply the static keyword� to methods and fields �	13.4
6.5	Create and overload constructors; including impact on default constructors	12.5,12.6,12.7
6.6	Apply access modifiers	12.2 (private only)
6.7	Apply encapsulation principles to a class	13.2
6.8	Determine the effect upon object references and primitive values when they are passed� into methods that change the values	not on junior associate exam
Working with Inheritance
7.1	Describe the hierarchy of implementing inheritance	not on junior associate exam
7.2	Develop code that demonstrates the use of polymorphism	not on junior associate exam
7.3	Differentiate between the type of a reference and the type of an object; including overriding and object type versus reference type	not on junior associate exam
7.4	Determine when casting is necessary	4.2
7.5	Use super and this to access objects and constructors	not on junior associate exam
7.6	Use abstract classes and interfaces	not on junior associate exam
Handling Exceptions
8.1	Differentiate among checked exceptions, RuntimeExceptions and Errors	10.3
8.2	Create a try-catch block and determine how exceptions alter normal program flow	10.1,10.4
8.3	Describe the advantages of Exception handling	10.2
8.4	Invoke a method that throws an exception	10.1,10.4
8.5	Recognize common exception classes (such as NullPointerException, ArithmeticException, ArrayIndexOutOfBoundsException, ClassCastException)	10.3
Working with Selected Classes from the Java API
9.1	Manipulate data using the StringBuilder class and its methods	not on junior associate exam
9.2	Creating and manipulating Strings	4.3,6.1
9.3	Create and manipulate calendar data using classes from java.time.LocalDateTime, java.time.LocalDate, java.time.LocalTime, java.time.format.DateTimeFormatter, java.time.Period	not on junior associate exam
9.4	Declare and use an ArrayList of a given type	11.2, 11.3, 11.4
9.5	Write a simple Lambda expression that consumes a Lambda Predicate expression	not on junior associate exam

Java Junior Associate 8 Objective	Text	OCA 8 Coverage
What Is Java?
1.1	Describe the features of Java	1.5
1.2	Describe the real-world applications of Java	not on OCA
Java Basics
2.1	Describe the Java Development Kit (JDK) and the Java Runtime Environment (JRE)	not on OCA
2.3	Describe the components of object-oriented programming	1.2
2.3	Describe the components of a basic Java program	i1.2
2.4	Compile and execute a Java program	1.3
Basic Java Elements
3.1	Identify the conventions to be followed in a Java program	Implied in other OCA objectives
3.2	Use Java reserved words	Implied in other OCA objectives
3.3	Use single-line and multi-line comments in Java programs	Implied in other OCA objectives
3.4	Import other Java packages to make them accessible in your code	1.4
3.5	Describe the java.lang package
Working with Java Data Types
4.1	Declare and initialize variables including a variable using final	2.1
4.2	Cast a value from one data type to another including automatic and manual promotion	7.4
4.3	Declare and initialize a String variable	9.2
Working with Java Operator
5.1	Use basic arithmetic operators to manipulate data including +, -, *, /, and %	3.1
5.2	Use the increment and decrement operators	3.1
5.3	Use relational operators including ==, !=, >, >=, <, and <=	3.1
5.4	Use arithmetic assignment operators	3.1
5.5	Use conditional operators including &&, pipes and ?	3.1
5.6	Describe the operator precedence and use of parenthesis	3.1
Working with the String Class
6.1	Develop code that uses methods from the String class	9.2
6.2	Format Strings using escape sequences including %d, %n, and %s	not on OCA
Working with the Random and Math Classes
7.1	Use the Random class	not on OCA
7.2	Use the Math class	not on OCA
Using Decision Statements
8.1	Use the decision making statement (if-then and if-then-else)	3.4
8.2	Use the switch statement	3.5
8.3	Compare how == differs between primitives and objects	3.3
8.4	Compare two String objects by using the compareTo and equals methods	3.3 (compareTo is not on OCA)
Using Looping Statements
9.1	Describe looping statements	5.4
9.2	Use a for loop including an enhanced for loop	5.2
9.3	Use a while loop	5.1
9.4	Use a do- while loop	5.3
9.5	Compare and contrast the for, while, and do-while loops	5.4
9.6	Develop code that uses break and continue statements	5.5
Debugging and Exception Handling
10.1	Identify syntax and logic errors	8.2, 8.4
10.2	Use exception handling	8.3
10.3	Handle common exceptions thrown	8.1, 8.5
10.4	Use try and catch blocks	8.2, 8.4
Arrays and ArrayLists
11.1	Use a one-dimensional array	4.1
11.2	Create and manipulate an ArrayList	2.5,9.4
11.3	Traverse the elements of an ArrayList by using iterators and loops including the enhanced for loop	9.4 (iterators isn't on the OCA)
11.4	Compare an array and an ArrayList	9.4
Classes and Constructors
12.1	Create a new class including a main method	Implied in other OCA objectives
12.2	Use the private modifier	6.6
12.3	Describe the relationship between an object and its members	2.3
12.4	Describe the difference between a class variable, an instance variable, and a local variable	2.3
12.5	Develop code that creates an object's default constructor and modifies the object's fields	6.5
12.6	Use constructors with and without parameters	6.5
12.7	Develop code that overloads constructors	6.5
Java Methods
13.1	Describe and create a method	6.1
13.2	Create and use accessor and mutator methods	6.7
13.3	Create overloaded methods	6.1
13.4	Describe a static method and demonstrate its use within a program	6.2