Free 1Z0-811 Exam Prep

Describe Java features and platforms, the JDK, JRE, and JVM, bytecode, garbage collection, the structure of a basic program, and how to compile with javac and run with the java launcher.

Declare and initialize variables including final constants, use the eight primitive types, cast and promote values, declare String variables, and apply common String methods such as length, equals, and parseInt.

Use arithmetic, increment and decrement, relational, assignment, and conditional operators, apply operator precedence, and build if-then-else, switch, and ternary decision constructs.

Create and manipulate one-dimensional arrays, read array length, handle bounds, build and traverse an ArrayList, and compare fixed-size arrays with dynamic ArrayLists.

Write for, enhanced for, while, and do-while loops, nest loops, and control flow with break and continue while comparing when each loop type is appropriate.

Declare methods with parameters and return types, understand pass-by-value, method overloading, static versus instance methods, variable scope, and code reuse.

Create classes and objects, write constructors, apply encapsulation with private fields and accessors, use this and inheritance, and distinguish instance from static members.

Identify syntax and logic errors, read stack traces, write Javadoc comments, handle common exceptions with try-catch-finally, and use the Math and Random classes.