真心告白

這學期學的東西說多不多，不過還是讓我有點喘不過氣，原因就是自己大一不長進，上計概上機課時沒有好好學習到寫程式的精要跟重點。學習程式用背的根本就沒辦法讓自己進步，不過老師上的JAVA倒是很讓人可以融入學習的步調，尤其是每個Lab互相都有相關聯，比較不會讓人摸不着頭緒。前面寫過的Class，後面的Lab還是可以拿出來用。我想這種引導式教學是相當好的，尤其是老師上課也不會單調，不會一直講程式怎麼寫，而是連JAVA的一些歷史背景也有介紹，聽這些東西蠻有意思的，上起課也不會無聊。

這學期上課也讓我感觸良多，尤其是看到資工的兩個學長每次總是最早交出Lab，有時想程式怎麼寫，覺得卡卡的時候就會觀摩他們的Lab，這時就會覺得他們的思維真的是有經過訓練，邏輯能力真的是吾所不及，雖然這是人家的本行，不過還是會覺得我們電子系學生普遍程式能力不足，讓我想到老師說的:現在的世界是買硬體送軟體，以後是買軟體送硬體。系上對於程式相關課程應該要更重視一點!

最後，謝謝老師對於身心障礙者的用心，親人有身心障礙者就會知道對待身心障礙者是需要花很多苦心的，或許對老師可能不算什麼吧，不過還是值得我給老師喝采！

Lab Hanoi Tower

The pseudocode for Hanoi Tower is as follows:

solve(N, Src, Aux, Dst)
if N is 0 return
solve(N-1, Src, Dst, Aux)
Move N from Src to Dst
solve(N-1, Aux, Src, Dst)


Write the Java program based on the pseudocode in the above.

Lab Factorial

Write a Java program that computes N! where N is a positive integer.

Hint:

public static long factorial(int n)

Lab Recursive method

Write a recursive method to compute Fibonacci series.

Hint:

1.
fib(n)=fib(n-1)+fib(n-2)

2.
public static long fib(int n)

Lab Modular Sorting

Write a sort method which takes a double array as parameter
and returns the sorted array. Call this method in a main program.

Hint: The lab is a rewriting of Lab Sorting
to make the sorting procedure a reusable method.

Lab Array

Study Display 6.1, and then write a program that can sort numbers in ascending order.

Lab: Static Method II

Define a Complex class with a static method for computing complex addition. Use (2+3i)*(4+5i) in your test.




將4/28的LAB稍作修改便能得出

Lab Magic Parking Tower

A parking tower is out of order someday. If you park a Benz, you will end up with a Torben. Write a program to simulate this scenario. First create a class called CarParked which has a static method called outOfOrder. Name an object called yourCar, which happens to be a Benz. Your program should contain a class called CarParked and a test program called CarParkedDemo which test the method by CarParked.outOfOrder(yourCar).

Hint: You may study Display 5.14 to get some ideas.

Lab Static Method

Define a Complex class with a static method for computing complex addition. Use (2+3i)+(4+5i) in your test.

Lab Math methods

Compute the following mathematical functions.

Math.round(3.2)
Math.round(3.6)
Math.floor(3.2)
Math.floor(3.6)
Math.ceil(3.2)
Math.ceil(3.6)

Lab Finding the max of three numbers

Write a static method that computes the maximum of three float numbers.

Homework 5-4-2009

Do Project 7 of Chapter 4.

Lab Java Constructor

Write constructors in the lab Fraction Addition.

Lab Method Overloading

依據Class definition 3，修改程式使其接受三種setDate

date1.setDate(1,2,2008);
date2.setDate("February",2, 2008);
date3.setDate(2008);

Homework 4-27-2009

Do project 2 of Chapter 4.

強烈要求同學一定要親自動手做，鼓勵同學將理論與實作密切配合。
相信只要同學真正的努力用功，縱使資質稍差，應該都可以學到Java程式設計之知識

Lab ADT

Define a Complex class and write an object oriented program to compute (2+3i)+(4+5i) in Java.
The methods should include an access and a mutator.

Class definition 3

Do Display 4.7 (3rd, 2nd ed.) or 4.5 (1st ed.). Then use Display 4.8 to call 4.7.

Question
In Display 4.7, if the method setDate has the parameter as setDate(int month, int day, int year), what kind of changes should be made in its body of codes?

Homework 4-13-2009 Fraction Multiplication

Write a program to implement a method that can multiply 2 fractions. You will implement a class called Fraction consisting of a numerator and a denominator. The multiplication of
2 fractions should be equal to a fraction.
Use 1/2 * 1/3 as the test.

Hints:
Fraction f1, f2;
f1.multiply(f2);

lab Fraction equality test

Write a program to implement a method that can check whether 2 fractions are equal. You will implement a class called Fraction consisting of a numerator and a denominator. The equality test of 2 fractions should return a boolean value.

Use the following as the tests.

* 1/2, 2/4
* 5/6, 6/7


Hints:
Fraction f1, f2;
f1.equals(f2);

lab Fraction Addition

Write a program to implement a method that can do additions of 2 fractions. You will implement a class called Fraction consisting of a numerator and a denominator. The additions of
2 fractions should be equal to a fraction.
Use 1/2+1/3 as the test.

Hints:
Fraction f1, f2;
f1.add(f2);