A Programmer[ap]s Guide to Java Certification

Determine the result of applying any operator (including assignment operators and the instanceof operator) to operands of any type, class, scope, or accessibility, or any combination of these.

• See also Section 6.6 .

Determine the result of applying the boolean equals(Object) method to objects of any combination of the classes java.lang.String , java.lang.Boolean and java.lang.Object .

In an expression involving the operators & , , && , , and variables of known values, state which operands are evaluated and the value of the expression.

Determine the effect on objects and primitive values of passing variables into methods and performing assignments or other modifying operations in that method.

Understand the operator precedence and associativity rules.

Distinguish between conversions involving casting, widening numeric conversions, and narrowing numeric conversions.

State unary numeric promotion and binary numeric promotion rules and the contexts in which they are applied.

Understand type conversions for primitive data types on assignment, string concatenation, arithmetic expression evaluation, and method invocation.