please I need your help to solve these problems

I'm beginner in java
Would u pleez help me
I need a sloution for those problems below
I'll appreciate your help and I'll never forget it

problem 1:
Write a program that allows the user to input a string.
Your program will extract and display the vowel/s.

Sample output :Enter a string: Hello World { press enter}
Vowels = e o o

Enter a string : HELLO JavA {press Enter }
Vowels = e o a a


problem2:
Write a program to display a multiplication table, by entering the start number and the end number

sample output:

Enter start number : 1
Enter end number : 3 { press enter}

1 2 3 4 5 6 7 8 9 10
1 1 2 3 4 5 6 7 8 9 10
2 2 4 6 8 10 12 14 16 18 20
3 3 6 9 12 15 18 21 24 27 30


problem 3:

Write a program to enter five numbers and will determine the location of the number.


Sample output
Enter 5 numbers:

1
2
3
4
5
Enter number to search : 1 " press enter "
1found in location 1

and thanxxxx a lot

And what did you come up with?

FYI, we are not simply going to do this for you.

I second the reply above -- let's see a decent try by you towards a solution first. I've found that usually the more thought and effort posters put into creating and solving their questions, the better their chances are of a volunteer here taking the time and effort to consider it and give a helpful answer.