Advanced Programming Java 1
                     Advance Programming
 Java 
Lecture 1 
Assoc. Prof. Dr. Wael Yafooz
ASSESSMENT 
 Quizzes 1,2 3            (15%) 
 Project                      (10%)
 Participation            (5%)
 Mid-term                 (20%)
 Final Exam             (50 %)
OUTLINE
 Programming Methodology 
 Why Java
 Compiler and interpreter 
 Java Virtual Machine
 Operators
 Loops
 If statement
 Switch Statement
PROBLEM SOLVING
 Before writing a program for certain problem 
we need first to solve this problem.  
Different techniques are proposed to find 
the solution of the problem,  for example:
1. Algorithms.
2. Refinement of the Algorithm.
3. Top-Down Design.
PROBLEM SOLVING
Algorithm  is a finite set of steps/instructions 
for solving a problem in a finite amount of time.
 In order to write an algorithm we need to define 
three components:
1. The input of the problem.
2. The output of the problem.
3. Processing - a list of steps that are performed on 
the input to produce the output.
PROBLEM SOLVING
 Refinement of the algorithm means that 
refine each step in the algorithm by 
replacing it with more detailed steps.  
PROBLEM SOLVING
 The top-down design is the process of dividing a 
large problem into many small subproblems.
 The steps of top-down design are as follows.
1. Divide the problem into subproblems.
2. Each subproblems is divide into smaller 
subproblems many times until each subproblem 
can be solved easily.
3. Find the solution of each subproblem.
4. Combine the solution of all subproblems to obtain 
the solution of the original problem.
PROGRAMMING METHODOLOGIES
 Programming methodology is a way of 
conceptualizing what it means to perform 
computation.
1. Structured Programming (SP): using the three basic 
control structures: sequential (an ordered execution of 
statements), selective (if-else, switch), and repetition 
(for,  while, do-while).
2. Procedural Programming (PP): using a collection of 
variables, data structures and subroutines (procedure 
and function). 
3. Object Oriented Programming (OOP): using  objects – 
data and methods together with their interactions. 
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PROGRAMMING METHODOLOGIES
#include #include
void mian() long factorial(unsigned int n)
{ unsigned int n;  // positiveS P {  long f=1; PP
integer    for (int i=1; i