CodeProgram Java & C [ @]

Program Creat Menu

2007-05-08T04:41:00.002-07:00

public class Menu {

public static void main(String[] args) {
char choice;
int i=1;
while(i==1){
System.out.println("1.Add");
System.out.println("2.Sub");
System.out.println("3.Mul");
System.out.println("4.Def");
System.out.println("5.Pow");
System.out.println("6.square");

choice=Console.readChar();
switch(choice){
case '1':
int a,b,c;
System.out.print("Enter A : ");
a=Console.readInt();
System.out.print("Enter B : ");
b=Console.readInt();
c=a+b;
System.out.println("Ans is "+c);
break;
case '2':
int a2,b2,c2;
System.out.print("Enter A : ");
a2=Console.readInt();
System.out.print("Enter B : ");
b2=Console.readInt();
c2=a2-b2;
System.out.println("Ans is "+c2);
break;
case '3':
int a3,b3,c3;
System.out.print("Enter A : ");
a3=Console.readInt();
System.out.print("Enter B : ");
b3=Console.readInt();
c3=a3*b3;
System.out.println("Ans is "+c3);
break;
case '4':
int a4,b4,c4;
System.out.print("Enter A : ");
a4=Console.readInt();
System.out.print("Enter B : ");
b4=Console.readInt();
c4=a4/b4;
System.out.println("Ans is "+c4);
break;
case '5':
int a5,b5;
double c5;
System.out.print("Enter A : ");
a5=Console.readInt();
System.out.print("Enter B : ");
b5=Console.readInt();
c5=Math.pow(a5,b5);
System.out.println("Power is "+c5);
break;
case '6':
int a6;
double b6;
System.out.print("Enter Square root : ");
a6=Console.readInt();
b6=Math.sqrt(a6);
System.out.println("Square root is "+(int)b6);
break;
case 'x':
i=0;
break;

}
}

}
}

Program Shape

2007-05-08T04:41:00.001-07:00

public class ShapeMain {

public static void main(String[] args) {
Rectangle r1,r2;
Circle c1,c2;

r1 = new Rectangle();
r2 = new Rectangle(10,20);
c1 = new Circle();
c2 = new Circle(30);
r1.print();
r2.print();
c1.print();
c2.print();

}

}

Program OrderTest

2007-05-08T04:40:00.001-07:00

public class OrderTest2 {
public static void main(String[] args) {
Order2 order1 = new Order2("Fried Rice", 2, 17);
Order2 order2 = new Order2("Fanta", 4, 6);

// order1 คือ Instance
// order2 คือ Instance

System.out.println("Order #1");
System.out.println(order1); // จะรู้อัตโนมัติว่าต้องไปเรียกใช้ ToString
System.out.println("Order #2");
System.out.println(order2); // จะรู้อัตโนมัติว่าต้องไปเรียกใช้ ToString
System.out.println("-----------------------------");
Order2.setVAT(8.0f);
System.out.println("Order #1\n" + order1);
System.out.println("Order #2\n" + order2);
}
}

class Order2 {
private static double vat = 7.0f;

private String name;
private int amount;
private double unitPrice;

public Order2(String n, int num, double price) {
if(n == null || num < 0 || price < 0)
throw new RuntimeException("program error");

name = n;
amount = num;
unitPrice = price;
}

public String toString() {
String str;
double total;

total = amount * unitPrice * (1+vat/100);

str = "Item name : " + name + "\n" +
"Amount : " + amount + " unit(s)\n" +
"Unit price : " + unitPrice + " baht\n" +
"VAT : " + vat + "%\n" +
"Total price : " + total + " baht\n";
return(str);
}

public static void setVAT(double v) {
if(v > 0)
vat = v;
}
}

Program JobTest

2007-05-08T04:39:00.001-07:00

public class JobTest {
public static void main(String[] args) {
Manager kanok;
Secretary supa;
Employee suwat;

suwat = new Employee("Suwat", 8000);
supa = new Secretary("Supa", 10000);
kanok = new Manager("Kanok", 25000, supa);

System.out.println(suwat);
System.out.println(supa);
System.out.println(kanok);

suwat.raiseSalary();
supa.raiseSalary();
kanok.raiseSalary();

System.out.println(suwat);
System.out.println(supa);
System.out.println(kanok);
}
}

class Employee {
private String name;
protected double salary;

public Employee(String name, double salary) {
this.name = name;
this.salary = salary;
}

public void raiseSalary() {
salary += salary * 0.1;
}

public String toString() {
String str;

str = "name : " + name + "\n" +
"salary: " + salary + "\n";
return(str);
}
}

class Secretary extends Employee {
public Secretary(String name, double salary) {
super(name, salary);
}

public void raiseSalary() {
salary += salary * 0.15;
}
}

class Manager extends Employee {
private Secretary secretary;

public Manager(String name,double salary,Secretary secretary) {
super(name, salary);
this.secretary = secretary;
}

public void raiseSalary() {
salary += salary * 0.2;
}

public String toString() {
String str;

str = super.toString() +
"secretary :\n" + secretary;
return(str);
}
}

Program DataPerson 2

2007-05-08T04:38:00.002-07:00

public class DataPerson2 {
public static void main(String[] args){
Person2 P1,P2;
Student2 std1,std2,std3;
Teacher2 th1,th2;
Student2[] STD;

P1=new Person2("แดง","042814148",21);
P2=new Person2("ดำ","017007001",18);
std1=new Student2("สาคร","0875090940",21,"4914210019");
std2=new Student2("จารุวรรณ","0815463627",21,"4914210002");
std3=new Student2("นิตยา","0850000000",22,"4914210078");

// อาจารย์มีนักศึกษา ในความดูแล 2 คน
STD = new Student2[2];
STD[0]=std1;
STD[1]=std2;
th1=new Teacher2("สมชาย","0854903454",30,"วิทยาศาสตร์",STD);
// อาจารย์มีนักศึกษา ในความดูแล 3 คน
STD = new Student2[3];
STD[0]=std1;
STD[1]=std2;
STD[2]=std3;
th2=new Teacher2("วีัณะการุณ","0895467583",30,"วิศวกรรมศาสตร์",STD);
System.out.println(P1);
System.out.println(P2);
System.out.println(std1);
System.out.println(std2);
System.out.println(th1);
System.out.println(th2);

}

}
class Person2{
private String name;
private String telno;
private int age;
public Person2(String name,String telno,int age){
this.name=name;
this.telno=telno;
this.age=age;

}
public String toString(){
String str;
str="Name : "+name+"\n"+
"Telno: "+telno+"\n"+
"Age : "+age+"\n";
return(str);
}
public String getName(){
return name;
}
public String getTelno(){
return telno;
}
public int getAge(){
return age;
}
public void setName(String name){
this.name=name;
}
public void setTelno(String telno){
this.telno=telno;
}
public void setAge(int age){
this.age=age;
}
}
class Student2 extends Person2{
private String studentCode;

public Student2(String name,String telno,int age,String studentCode){
super(name,telno,age);
this.studentCode=studentCode;
}
public String toString(){
String str;
str=super.toString()+"StudentCode :"+studentCode+"\n";
return (str);
}
public String getStudentCode(){
return (studentCode);
}
public void setStudentCode(String studentCode){
this.studentCode=studentCode;
}

}
class Teacher2 extends Person2{
private String department;
private Student2[] studentList;
public Teacher2(String name,String telno,int age,String department){
super(name,telno,age);
this.department=department;
}
public Teacher2(String name,String telno,int age,String department,Student2[] STD){
super(name,telno,age);
this.department=department;
studentList = STD;
}
public String toString(){
String str;
int i;
str=super.toString()+"Department :"+department+"\n";
for(i = 0; i < studentList.length; i++)
str += "studentList "+ (i+1) +" : \n" +studentList[i];
return(str);
}
public String getDepartment(){
return (department);
}
public void setDepartment(String department){
this.department=department;
}
}

Program DataPerson 1

2007-05-08T04:38:00.001-07:00

public class DataPerson {
public static void main(String[] args){
Person P1,P2;
Student std1,std2;
Teacher th1,th2;

P1=new Person("แดง","042814148",21);
P2=new Person("ดำ","017007001",18);
std1=new Student("สาคร","0875090940",21,"4914210019");
std2=new Student("จารุวรรณ","0815463627",21,"4914210002");
th1=new Teacher("สมชาย","0854903454",30,"วิทยาศาสตร์");
th2=new Teacher("วีัณะการุณ","0895467583",30,"วิศวกรรมศาสตร์");

System.out.println(P1);
System.out.println(P2);
System.out.println(std1);
System.out.println(std2);
System.out.println(th1);
System.out.println(th2);

}

}
class Person{
private String name;
private String telno;
private int age;
public Person(String name,String telno,int age){
this.name=name;
this.telno=telno;
this.age=age;

}
public String toString(){
String str;
str="Name : "+name+"\n"+
"Telno: "+telno+"\n"+
"Age : "+age+"\n";
return(str);
}
public String getName(){
return name;
}
public String getTelno(){
return telno;
}
public int getAge(){
return age;
}
public void setName(String name){
this.name=name;
}
public void setTelno(String telno){
this.telno=telno;
}
public void setAge(int age){
this.age=age;
}
}
class Student extends Person{
private String studentCode;

public Student(String name,String telno,int age,String studentCode){
super(name,telno,age);
this.studentCode=studentCode;
}
public String toString(){
String str;
str=super.toString()+"StudentCode :"+studentCode+"\n";
return (str);
}
public String getStudentCode(){
return (studentCode);
}
public void setStudentCode(String studentCode){
this.studentCode=studentCode;
}

}
class Teacher extends Person{
private String department;
public Teacher(String name,String telno,int age,String department){
super(name,telno,age);
this.department=department;
}
public String toString(){
String str;
str=super.toString()+"Department :"+department+"\n";
return(str);
}
public String getDepartment(){
return (department);
}
public void setDepartment(String department){
this.department=department;
}
}

Program DetailStudent

2007-05-08T04:36:00.002-07:00

public class DetailStudent {

public static void main(String[] args) {
Detail std1 = new Detail("Fried","Rice",19,170);
Detail std2 = new Detail("Fanta","Four",15,172);
Detail std3 = new Detail("A2","Four",18,160);

// std1 คือ Instance
// std2 คือ Instance

System.out.println("นักเรียนคนที่ # "+std1.getCounter());
System.out.println(std1); // จะรู้อัตโนมัติว่าต้องไปเรียกใช้ ToString
System.out.println("นักเรียนคนที่ # "+std2.getCounter());
System.out.println(std2); // จะรู้อัตโนมัติว่าต้องไปเรียกใช้ ToString
System.out.println("นักเรียนคนที่ # "+std3.getCounter());
System.out.println(std3); // จะรู้อัตโนมัติว่าต้องไปเรียกใช้ ToString

}
}
class Detail {
private static double total=0;
private String firstname;
private String lastname;
private int age;
private double height;
private double counter;

public Detail(String firstname, String lastname, int age,double height) {

this.firstname = firstname;
this.lastname = lastname;
this.age = age;
this.height =height;
total++;
counter=total;

}

public String toString() {
String str;
str = "Firstname : " + firstname + " \n" +
"Lastname : " + lastname + " \n" +
"Age : " + age + " Years.\n"+
"Height : " + height + " cm.\n";

return(str);
}
public double getCounter(){
return counter ;
}
public void setCounter(double cout){
counter=cout ;
}
}

Program Building

2007-05-08T04:36:00.001-07:00

public class Building {

public static void main(String[] args) {
DataBuilding Building1 = new DataBuilding("Building1",50,2300,true);
DataBuilding Building2 = new DataBuilding("Building2",1,100,true);
DataBuilding Building3 = new DataBuilding("Building3",10,1000,true);
DataBuilding Building4 = new DataBuilding("Building4",6,20,true);
DataBuilding Building5 = new DataBuilding("Building5",15,500,true);

if(Building1.getNumFloor()>9){
System.out.println("Building # "+Building1.getCounter());
System.out.println(Building1); // จะรู้อัตโนมัติว่าต้องไปเรียกใช้ ToString
}
if(Building2.getNumFloor()>9){
System.out.println("Building # "+Building2.getCounter());
System.out.println(Building2); // จะรู้อัตโนมัติว่าต้องไปเรียกใช้ ToString
}
if(Building3.getNumFloor()>9){
System.out.println("Building # "+Building3.getCounter());
System.out.println(Building3); // จะรู้อัตโนมัติว่าต้องไปเรียกใช้ ToString
}
if(Building4.getNumFloor()>9){
System.out.println("Building # "+Building4.getCounter());
System.out.println(Building4);
}
if(Building5.getNumFloor()>9){
System.out.println("Building # "+Building5.getCounter());
System.out.println(Building5);
}
}
}
class DataBuilding{
private static double total=0;
private String name;
private int numFloor;
private int numRoom;
private boolean hasGuard;
private double counter;

public DataBuilding(String name, int numFloor, int numRoom,boolean hasGuard) {

if(numFloor>=9){
this.name = name;
this.numFloor = numFloor;
this.numRoom = numRoom;
this.hasGuard = hasGuard;
total++;
counter=total;
}
}

public String toString() {
String str;

str = "Name : " + name + " \n" +
"NumFloor : " + numFloor + " \n" +
"NumRoom : " + numRoom + " \n" +
"hasGuard : " + hasGuard + " \n";

return (str);
}
public static double getTotal(){
return total;
}
public double getCounter(){
return counter ;
}
public String getName(){
return name ;
}
public int getNumFloor(){
return numFloor ;
}
public int getNumRoom(){
return numRoom ;
}
public boolean getHasGuard(){
return hasGuard ;
}
public void setCounter(double c){
counter = c;
}
public void setName(String name){
this.name = name;
}
public void setNumFloor(int floor){
numFloor = floor;
}
public void setNumRoom(int room){
numRoom = room;
}
public void setHasGuard(boolean Guard){
hasGuard = Guard;
}

}

Program Student

2007-05-08T04:35:00.001-07:00

public class Student {
private String name;
private String telNo;
private int age;
private double weight;

public Student(String name,String telNo,int age,double weight){
this.name = name;
this.telNo = telNo;
this.age = age;
this.weight = weight;
}

public String toString() {
String str;

str = "Name : " + name + "\n" +
"TelNo : " + telNo + " \n" +
"age : " + age + " year old\n"+
"Aeight : " + weight + " Kgs.\n";
return(str);
}
public String getName(){
return name;
}
public String getTelNo(){
return telNo;
}
public int getAge(){
return age;
}
public double getWeight(){
return weight;
}
public void setName(String name){
this.name=name;
}
public void setTelNo(String telNo){
this.telNo=telNo;
}
public void setAge(int age){
this.age=age;
}
public void setWeight(double weight){
this.weight=weight;
}
public static void main(String[] args) {
Student s1 = new Student("B","0812345678",20,89.1);
Student s2 = new Student("V","08123456789",19,91.2);

System.out.println("Detail B\n" +s1);
System.out.println("Detail V\n" +s2);

s1.setName("สมปอง");
s1.setTelNo("0869876543");
s2.setAge(21);
s2.setWeight(70);
System.out.println("name s1 :" +s1.getName());
System.out.println("TelNo s1 :" +s1.getTelNo());
System.out.println("Age s2 :" +s2.getAge());
System.out.println("Weight s2 :" +s2.getWeight());

// try: remove method toString() and see what happends
}

}

Program book

2007-05-08T04:33:00.000-07:00

public class Book {
public static void main(String[] args) {
DetailBook B1 = new DetailBook("Book Java","Learn OOP",300,"974-71736-6-X",2005);
DetailBook B2 = new DetailBook("Book C++","Method",250,"854-33730-5-G",2006);
DetailBook B3 = new DetailBook("Book C++","Class",250,"553-62450-8-H",2006);

System.out.println("Book 1\n" +B1);
System.out.println("Book 2\n" +B2);
System.out.println("Book 3\n" +B3);

B1.setName("Management");
B1.setAuthor("KM(Knowled Management)");
B1.setPrice(1000);
B1.setIsbn("000-63250-1-W");
B1.setCopyNumber(2007);
System.out.println("name Book1 :" +B1.getName());
System.out.println("Author Book1 :" +B1.getAuthor());
System.out.println("Price Book1 :" +B1.getPrice()+" Baht");
System.out.println("Isbn Book1 :" +B1.getIsbn());
System.out.println("CopyNumber Book1 :" +B1.getCopyNumber());

}

}

Test Password Weak or Good

2007-05-08T04:31:00.000-07:00

public class Passwd {

public static void main(String[] args) {
int i,couter1=0,couter2=0;
String str;

System.out.print("Enter a String : ");
str = Console.readString();

if(str.length()>=8){ //Length Word Input > 8
int word1=str.indexOf("computer");
int word2=str.indexOf("mut");

if(word1>=0||word2>=0){//check word not have computer or mut
System.out.println("Weak Password");
}
else{
for(i=0;i if(str.charAt(i)>='a'&&str.charAt(i)<='z'||str.charAt(i)>='A'&&str.charAt(i)<='Z'){
couter1++;
}
else
if(str.charAt(i)>='0'&&str.charAt(i)<='9'){
couter2++;
}
}
if(couter1==str.length()||couter2==str.length()){
System.out.println("Weak Password");
}
else
System.out.println("Good Password");
}
}
else //Length Word Input < 8
System.out.println("Weak Password");

/* +++++++++++++++ Test Couter +++++++++++++++++++++ */
//System.out.println("Couter1: "+couter1);
//System.out.println("Couter2: "+couter2);
}

}

Program Multiply

2007-05-08T04:27:00.000-07:00

public class Multiply {

public static void main(String[] args) {
int i,j;
for(j=1;j<=12;j++){
for(i=1;i<=10;i++){
if((i*j)<10){
System.out.print(+i+"x"+j+"=");
System.out.print(" ");
System.out.print((i*j)+" ");
}
else
if((i*j)>=10&&(i*j)<=99){
System.out.print(+i+"x"+j+"=");
System.out.print(" ");
System.out.print((i*j)+" ");
}
else
if((i*j)>=100&&(i*j)<=144){
System.out.print(+i+"x"+j+"=");
System.out.print(" ");
System.out.print((i*j)+" ");
}

}
System.out.println();
}

}

}

Counts the number of bytes in a file

2007-05-08T04:10:00.001-07:00

#include
#include
#include

main( )
{
FILE* fptr;
char extension[] = ".c";

char file_name[FILENAME_MAX]; /* defined in stdio.h*/
int char_count;

printf("\n\n\tFile name (NO extension):\t");
scanf("%s",file_name);
strcat(file_name,extension);
fptr=fopen(file_name,"rb");

for(char_count=0; getc(fptr) !=EOF; ++char_count);
printf("\n\tByte size:\t%d", char_count);
fclose(fptr);

return EXIT_SUCCESS;
}

Weight conversion of pounds to ounces

2007-05-08T04:08:00.000-07:00

#include

main( )
{
int pounds;

/* Read first weight in pounds */

printf("\n\n\tWeight in pounds?");
scant("%d",£s);

/* Loop until user signals halt with negatie integer. */

while(pounds>=0)
{
printf("\n\n\tEquivalent weight in ounces: %d", pounds * 16);
printf("\n\n\tWeight in pounds?");
printf("\n\n\tEnter a negative integer to quit.");
scanf("%d",£s);
}
}

Sorting program

2007-05-08T04:04:00.000-07:00

/* Using qsort() and bsearch() with values.*/

#include
#include

#define MAX 20

int intcmp(const void *v1, const void *v2);

main()
{
int arr[MAX], count, key, *ptr;

/* Enter some integers from the user. */

printf("Enter %d integer values; press Enter after each.\n", MAX);

for (count = 0; count < MAX; count++)
scanf("%d", &arr[count]);

puts("Press a key to sort the values.");
getch();

/* Sort the array into ascending order. */

qsort(arr, MAX, sizeof(arr[0]), intcmp);

/* Display the sorted array. */

for (count = 0; count < MAX; count++)
printf("\narr[%d] = %d.", count, arr[count]);

puts("\nPress a key to continue.");
getch();

/* Enter a search key. */

printf("Enter a value to search for: ");
scanf("%d", &key);

/* Perform the search. */

ptr = (int *)bsearch(&key, arr, MAX, sizeof(arr[0]),intcmp);

if ( ptr != NULL )
printf("%d found at arr[%d].", key, (ptr - arr));
else
printf("%d not found.", key);
}

int intcmp(const void *v1, const void *v2)
{
return (*(int *)v1 - *(int *)v2);
}

Hello World program

2007-05-08T04:03:00.000-07:00

/* Hello World program */
#include
main()
{
printf("Hello World");
}

Sample C Programs

2007-05-08T04:00:00.000-07:00

Hello World program

sorting program

weight conversion of pounds to ounces

Counts the number of bytes in a file

Code Java

2007-05-08T03:48:00.000-07:00

CodeProgram Java & C [ *@*]