Hi there,

I'm currently a student in an intro to Java course at the college level. I've been doing well all semester, but I've ran into trouble with our latest lab. It's a bonus lab, so naturally the content wasn't covered in class. After playing around with what I found in my textbook, I have a start but not much else.

Basically, it's a string analysis assignment and I'm sure its easy for most programmers. I'm a telecom student taking Java as opposed to a computer programming student taking java, so this stuff is a little more difficult for me.

After asking the user to enter some text and storing that text to a string variable while using a scanner object, I need to be able to output the following:

* The number of keystrokes in the string.
* The number of letters in the string.
* The number of upper-case and lower-case letters in the string.
* The number of digits in the string.
* The number of even and odd digits in the string.

So far, all I can do is output the number of keystrokes in the string. This is my program so far. I've been putting some serious time into this, but like I said, programming certainly doesn't come naturally for me. Otherwise I wouldn't be asking for help.

import java.util.*;
public class BonusLab 
	public static void main(String[] args) 
		Scanner keysIn = new Scanner(System.in);
		System.out.print("Enter some text: ");
		String str = keysIn.next();

		System.out.println("String Analysis:");
		System.out.println("Keystrokes: " + str.length());


Any feedback would be much appreciated and thanks in advance

Recommended Answers

this is the API you can use with strings.


you can use all those methods. if your not clear enough on the page how to use a given method but …

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You are correct programming doesn't come naturally at the beginning. You must try and try at your best. see Java documentation to study more functions. http://java.sun.com/j2se/1.4.2/docs/api/

import java.util.Scanner;

class test
	static int getDigits(String str)
		int count=0;
		for(int i=0;i<str.length();i++)
			if(str.charAt(i)>=48 && str.charAt(i)<=57)
		return count;

	public static void main(String args[])
		String s;
		Scanner sc=new Scanner(System.in);

Im also new to Java and stuck on arrays and needing help on this first portion of my program. i want the user to enter the 20 numbers in one line opposed to asking them 20 times how I have it in this loop. I don't know if I need the user to separate the numbers by commas or not.

1.import java.util.Scanner;
3.public class NumberAnalysis
5.   public static void main(String[] args)
6.   {
7.      Scanner keyboard = new Scanner( System.in );
8.        int[] nums = new int[20];                                
10.        for( i = 0; i < 20; i++ )                                
11.        {
12.            System.out.println( "Enter a series of 20 numbers:" );
13.            nums[i] = keyboard.nextDouble();
15.        }
16.        for( i = 0; i < 20; i++ )
17.        {
18.            System.out.print( nums[i] + " " );  
19.        }
20.        System.out.println();       
21.   }
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