untitled

	public void makeGraph() {

		matrix = new String[subjects.size()][subjects.size()];

		for (int i = 0; i < matrix.length; i++) {
			for (int j = i; j < matrix.length; j++) {

				boolean conditioned;

				if(subjects.get(i).getName().equalsIgnoreCase(subjects.get(j).getName())){
					conditioned=false;
				}else{
					System.out.println("Enter conditionality between subjects: " + subjects.get(i).getName() + ", and "
							+ subjects.get(j).getName());
					conditioned = s.nextBoolean();
				}

				if (conditioned == true) {

					if (subjects.get(i).getSemester() > subjects.get(j).getSemester()) {
						matrix[i][j] = "yes";
						matrix[j][i] = "no";
					}else if(subjects.get(i).getSemester()<subjects.get(j).getSemester()){

						System.out.println("Enter conditionality between subjects: " + subjects.get(j).getName() + ", and "
								+ subjects.get(i).getName());
						conditioned = s.nextBoolean();
						matrix[i][j] = "no";
						matrix[j][i] = "yes";
					}else{
						matrix[i][j] = "no";
						matrix[j][i] = "no";
					}
				} else {
					matrix[i][j] = "no";
				}
			}
		}
	}