2007年6月11日 星期一
2007年6月4日 星期一
JAVA期末考 (一)
1.雖然這學期上的課我很多還是不太懂,
但是可以感受到老師的教學很用心,
也都希望我們可以學到東西,
即使還沒有學到可以直接實際應用的東西,
不過可以了解到JAVA在通訊傳輸上比其他程式語言更方便!!
以後有機會的話,
我會想要學的更深入!!
2. Design a static method that can compute the vector inner product. You must first define Vector class in the first place. Write a demo program to verify your program works.
但是可以感受到老師的教學很用心,
也都希望我們可以學到東西,
即使還沒有學到可以直接實際應用的東西,
不過可以了解到JAVA在通訊傳輸上比其他程式語言更方便!!
以後有機會的話,
我會想要學的更深入!!
2. Design a static method that can compute the vector inner product. You must first define Vector class in the first place. Write a demo program to verify your program works.
2007年5月21日 星期一
2007年5月14日 星期一
2007年4月16日 星期一
2007年4月9日 星期一
Homework 3-26-2007: Finding the max and the min
Based on your study of Display 3.8, write a code to find the max and min of a list of number.For example, given 1,3,5, and9, the max is 9 and the min is 1.Your program should be able to process a list of any length.
2007年3月26日 星期一
java 考試 (一)
1. Revise your program for Simple Java Expression according to Java program styles. Check the following(1) the naming of constants, if any,(2) Java spelling conventions, and(3) indenting.
3. The identifier BufferedReader is normally abbreviated as BR in programming language C. However, Java programmers normally do not use abbreviations in identifiers. Can you give some good reasons for using long names in Java?
4. The Java Virtual Machine handles string objects in a way different from the one it handles variables of primitive types such as int, long, float, and double. What is the difference?
ans:
spring 在 java 裡面是個類別為 (class) 的變數
int-integer 整數的方式可記憶 4bytes
long-integer 整數的方式可記憶 8bytes
float 浮點數的方式可記憶 4bytes
double 浮點數的方式可記憶 8bytes
2. Insert proper comments in your program for Simple Java Expression. Note that there are 2 ways to insert comments: line comments and block comments.
3. The identifier BufferedReader is normally abbreviated as BR in programming language C. However, Java programmers normally do not use abbreviations in identifiers. Can you give some good reasons for using long names in Java?
4. The Java Virtual Machine handles string objects in a way different from the one it handles variables of primitive types such as int, long, float, and double. What is the difference?
ans:
spring 在 java 裡面是個類別為 (class) 的變數
int-integer 整數的方式可記憶 4bytes
long-integer 整數的方式可記憶 8bytes
float 浮點數的方式可記憶 4bytes
double 浮點數的方式可記憶 8bytes
2007年3月19日 星期一
2007年3月12日 星期一
java 作業 (二)
Java Homework Problems 2007/3/5
1. Explain bytecode, JVMAns : byte-code : The programs are first translated into an small ,easy-to-write and inexpensive language .This is a intermediate language .Program translated this intermediate language into the machine language for a particular appliance or computer .This intermediate language is call Java byte-code or byte-code.
Java
↓ compile
Byte-code
↓ interpreter
Microprocessor
JVM : A Java virtual machine or JVM is a virtual machine that runs Java byte code. This code is most often generated by Java language compilers, although the JVM has also been targeted by compilers of other languages.
2. Explain class, objectAns:
A Java program is divided into smaller parts called classes. Class is placed in a file of the same name, except that the ending is changed from java to class. Object-oriented programming has its own specialized terminology. The objects are called, appropriately enough, objects. The actions that an object can take are called methods. Objects of the same kind are said to have the same type or, more often are said to be in the same class.
class(類別) → 1.Methods:(actions動作) 2.Property:(屬性 )
↓
objects(物件)
3. Reading Assignments:
Read 1.1, 1.2, 1.3 of Textbook
4.1 Write a Java program as follows:
Let i=2;
Print i;
Print 2 * (i++);
Print i;
Ans: 2, 4, 3
4.2 Write a Java program as follows:
Let i=2;
Print i;
Print 2 * (++i);
Print i;
Ans: 2, 6, 3
4.3 Write a Java program as follows:
Let m=7, n=2;
Print (double) m/n;
Print m/ (double)n;
Ans: 3.5, 3.5
1. Explain bytecode, JVMAns : byte-code : The programs are first translated into an small ,easy-to-write and inexpensive language .This is a intermediate language .Program translated this intermediate language into the machine language for a particular appliance or computer .This intermediate language is call Java byte-code or byte-code.
Java
↓ compile
Byte-code
↓ interpreter
Microprocessor
JVM : A Java virtual machine or JVM is a virtual machine that runs Java byte code. This code is most often generated by Java language compilers, although the JVM has also been targeted by compilers of other languages.
2. Explain class, objectAns:
A Java program is divided into smaller parts called classes. Class is placed in a file of the same name, except that the ending is changed from java to class. Object-oriented programming has its own specialized terminology. The objects are called, appropriately enough, objects. The actions that an object can take are called methods. Objects of the same kind are said to have the same type or, more often are said to be in the same class.
class(類別) → 1.Methods:(actions動作) 2.Property:(屬性 )
↓
objects(物件)
3. Reading Assignments:
Read 1.1, 1.2, 1.3 of Textbook
4.1 Write a Java program as follows:
Let i=2;
Print i;
Print 2 * (i++);
Print i;
Ans: 2, 4, 3
4.2 Write a Java program as follows:
Let i=2;
Print i;
Print 2 * (++i);
Print i;
Ans: 2, 6, 3
4.3 Write a Java program as follows:
Let m=7, n=2;
Print (double) m/n;
Print m/ (double)n;
Ans: 3.5, 3.5
2007年3月5日 星期一
2007年3月2日 星期五
訂閱：
文章 (Atom)