1. Java Chapter 1 Problem solving: 1. Understanding the problem. 2. Breaking the problem into manageable pieces. 3. Designing a solution. 4. Considering alternatives to the solution and refining the solution. 5. Implementing the solution 6. Testing the solution and fixing any problems.

2. Memory: Each memory location is eight bits or a byte of information. 1 kilobyte = 1024 bytes. 2^10 1 megabyte = 2^20 bytes. 1 gigabyte = 2^30 bytes. Binary (base 2): 1 or 0 in a bit. Conversion to base 10 1101 = 1x2^3 + 1x2^2 + 0x2^1 + 1x2^0 = 13

3. Comments: Statements ignored by the computer. // This begins a single line comment. /* This begins a multiline comment. */ This will end the comment. White space in java is ignored.

4. Java compiler and interpreter are part of the Java JDK (Java Development Kit) – download from Oracle Syntax: rules of a language. These rules must be followed. Semantics: What will happen when the statement is executed.

5. Errors: compile-time error: syntax errors, incompatible types… runtime error: causes the program to terminate abnormally (crash!). logical error: bad results when executed.