bhavna raghuvanshi - Developer IT

I have applied a check for not allowing alphabets.But its not working.....

- by bhavna raghuvanshi

import java.util.Scanner; public class Main extends Hashmap{ public static void main(String[] args) { Hashmap hm = new Hashmap(); int x=0; Scanner input = new Scanner(System.in); do{ System.out.print("Enter any integer value between 1 to 12: "); x = input.nextInt(); …

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Validating input using java.util.Scanner [closed]

- by bhavna raghuvanshi

I'm taking user input from System.in using a java.util.Scanner. I need to validate the input for things like: It must be a non-negative number It must be an alphabetical letter ...etc What's the best way to do this?

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program to determine number of duplicates in a sentence

- by bhavna raghuvanshi

public class duplicate { public static void main(String[] args)throws IOException { System.out.println("Enter words separated by spaces ('.' to quit):"); Set<String> s = new HashSet<String>(); Scanner input = new Scanner(System.in); while (true) { String token = input.next(); if…

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how can we cal two servlets from the same html page?

- by bhavna raghuvanshi

I need to design a page to register as well as login a user.By clicking login button login servlet should be called.And on clicking register button,register servlet will be called.how can i do this?

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how to merge two ordered list of objects?

- by bhavna raghuvanshi

public class ListMerge { public static void main( String[] args) { Scanner input = new Scanner(System.in); System.out.println ("Input length of arraylist 1:"); int n = input.nextInt(); ArrayList x = new ArrayList(); ArrayList y = new ArrayList(); for (int i = 0; i <…

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search in a hashmap

- by bhavna raghuvanshi

how to search a value for given key in a hash map????? user will give the key and value should be returned

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pass reference of array lists to a function

- by bhavna raghuvanshi

I need to pass two array list references to a function and return the reference of merged array list. how can i do it???? pls help.... public int merge(ArrayList x, ArrayList y) { List all = new ArrayList(); all.addAll(x); all.addAll(y); System.out.println(all); return all; } is it correct???

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Pass reference to ArrayLists to a method.

- by bhavna raghuvanshi

here is the whole program: public class ListMerge { public static void main( String[] args) { Scanner input = new Scanner(System.in); System.out.println ("Input length of arraylist 1:"); int n = input.nextInt(); ArrayList x = new ArrayList(); ArrayList y = new ArrayList(); for (int i = 0; i…