مشكلة4....+الحل

Write a java program that read integers and find the total and average of the input values. End your program with the input

Solution:

import javax.swing.JOptionPane;
/** * * @author Administrator */

public class Main {
/** Creates a new instance of Main */

public Main() { }
/** * @param args the command line arguments */

public static void main(String[] args) {

int sum=0;

//Get the number of input elements

int n=Integer.parseInt(JOptionPane.showInputDialog("please enter how many numbers u want"));

//loop for each element

for(int i=0;i

//get the input number, convert it to integer

int x=Integer.parseInt(JOptionPane.showInputDialog("enter number"));

//add number to the summation

sum+=x;

}

//Calculate average

float average=sum*1.0f/n;

//Show average and summation

JOptionPane.showMessageDialog(null,"average=" +average);

JOptionPane.showMessageDialog(null,"sum=" +sum); }
}

مشكلة3....+ الحل

Write a java program that will sort three integers. The integers are entered from the key board and sorted in variables m1, m2, and m3 respectively. The programs sorts the numbers so that
M1≤ M2≥ M3

Solution:

import javax.swing.JOptionPane;

/** * * @author Administrator */

public class Main {
public Main() {

}
public static void main(String[] args) {

//Get Three inputs from users, and convert them to integers

int m1=Integer.parseInt(JOptionPane.showInputDialog("please enter first number"));

int m2=Integer.parseInt(JOptionPane.showInputDialog("please enter second number"));

int m3=Integer.parseInt(JOptionPane.showInputDialog("please enter third number"));

//if m1 greater than m2 and m3, then m1 is the greatest

if(m1>=m2&&m1>=m3)

JOptionPane.showMessageDialog(null,""+m2+m1+m3);

else if(m2>=m3)//Else if m2 greater than m3, then m2 is the greatest

JOptionPane.showMessageDialog(null,""+m1+m2+m3);

else//Else m3 will be the greatest

JOptionPane.showMessageDialog(null,""+m1+m3+m2);

}
}

مشكلة2....+ الحل

1- Write a java program that reads an integer between 0 and 1000 and summarize all digits in the integer. For example, if integer is 932, the sum of all digits is 14.

Solution:

public class Main {
/** Creates a new instance of Main */

public Main() {

}
/** * @param args the command line arguments */

public static void main(String[] args) {

//Let user enter input string, then covert it to integer

int x=Integer.parseInt(JOptionPane.showInputDialog("please enter the number"));

int sum=0;

while(x>0) {

//Make a summation of reminders

sum+=x%10;

x=x/10;

} //Show resulted summation

JOptionPane.showMessageDialog(null, "the sum is "+sum);

}

}

جافا......المشكلة الاولي + الحل

1- Write a java a program that converst Fahrenheit to celsuis. The formula for the conversiona is
Celsius = (5/9) * (fahrenheit - 32)

Solution:

import javax.swing.JOptionPane;
public class Main {
public static void main(String[] args) {

//Get input string from user, then convert to float

float f=Float.parseFloat(JOptionPane.showInputDialog("please enter the Fahrenheit value"));

//Write conversion equation

float c=(5*1.0f/9) * (f - 32);

//Display result

JOptionPane.showMessageDialog(null, "the Celsius value is="+c);

}
}

جافا......مشاكل وبرامج : دورة تعليمية متدرجة

جافا تعد اشهر لغة برمجة علي المستوي العالمي,وهي ايضا اللغة التي خرجت من عبائتا الكثير من اللغات المتقدمة مثل#c والتي تعد لغة الدوت نت الواعدة.

وان شاء الله سيتم علي المدونة البدء في دورة جافا متدرجة بالدخول للمشكلة التي نود ان نحلها.

نحن نفترض ان لديك المبادي الاساسية في البرمجة....

ولكن لأي استفسار برجاء لا تتردد: programming_man@yahoo.com