شطار الجافا ضروري دخول

[شمعة غريب]

السلام عليكم

اريد حل هذه البرامج ارجو مساعدتكم في حلها في اقرب وقت

1. Write a program that will print to the screen all the even numbers between 0 to 100

• Write a piece of java instruction that will sum all the elements in the following array:

int [ ] num = {1, 2, 3, 4, 5, 10};

3. Write a java program to Evaluate the following expressions where b=2, c=3,d=4

i. a=c/(d-b)

ii. a=b*c + c*(d/b + 5)

iii. a=b*b + d%(c-b)

4. Assume that this program will compile and run correctly, what output will it produce on the screen?

public class SwitchClass

{

public static void main(String[] s)

{

int choice = 10;

switch( choice )

{

case 5:

System.out.println("CASE5");

break;

case 10:

System.out.print("CASE10");

case 15:

System.out.print("CASE15");

default:

System.out.println("DEFAULT");

}

}

}

5. Correct and write the output of the following code?

class SwitchDemo2 {

public static void main(String[] args) {

month = 2;

year = 2000;

numDays = 0;

switch (month) {

case 1: case 3: case 5:

case 7: case 8: case 10:

case 12:

numDays = 31;

break;

case 4: case 6:

case 9: case 11:

numDays = 30;

break;

case 2:

if (((year % 4 == 0) &&

!(year % 100 == 0))

|| (year % 400 == 0))

numDays = 29;

else

numDays = 28;

break;

default:

System.out.println("Invalid month.");

break;

}

System.out.println("Number of Days = "

+ numDays);

}

}

1. Consider the following code snippet.

arrayOfInts[j] > arrayOfInts[j+1]

Which operators does the code contain?

7. Suppose A, B, C are arrays of integers of size M, N, and M + N respectively. The numbers in array A appear in ascending order while the numbers in array B appear in descending order. Write a java program to produce third array C by merging arrays A and B in ascending order. Use A, B and C as arguments in the function.

8. In a company an employee is paid as under:
If his basic salary is less than Rs. 1500, then HRA = 10% of basic salary
and DA = 90% of basic salary.
If his salary is either equal to or above Rs. 1500, then HRA = Rs. 500
and DA = 98% of basic salary.
If the employee's salary is input by the user write a program to find his gross salary.

9. Write a program to find the roots of and quadratic equation of type ax2+bx+c where a is not equal to zero

10. Write a program to check given number is prime or not.

11. Write a java program to display the following

1

212

32123

4321234

543212345

12. What is the output of the following code?

class example{

public static void main(String args[])

{

int row=6;

int col=6;

int i,j;

for(i=1;i<=row;i++)

{

for(j=1;j<=col;j++)

{System.out.println(i*j);}

System.out.println(” ”);

}}}

13. Write the output of the following code?

int a=3,b=3

for(int i=1;j<=a;i++)

{

for(int j=1;j<=i;j++)

{

System.out.println(”*”);}

System.out.println(”\n”’);

}

}