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anonyma · Accepted Answer

package String;

import java.util.Scanner;

public class RemoveArbitrySpace {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		//Scanner scan = new Scanner (System.in);
		
		String mystring = " s  mallem ";
		char previous = ' ';
		String s2;
		
		for(int i=0; i

anonyma · Answer

SELECT * FROM `test` WHERE LENGTH(SUBSTR(`salary`,INSTR(`salary`,"."))) = 5

INSTR(yourFloatNumber, Dot) => returns the position of dot in the float number
SUBSTR(yourFloatNumber, positionOfDot) => return the substring : begining from the position of DOT till the end of float
length (subStringExtracted) => count number of caracter including the DOT.

Answer for "Remove trailing spaces in String" · Answer

public static String trim(String s) {
        char first = s.charAt(0);
        char last = s.charAt(s.length() - 1);
        int countStartWhitespace = 0;
        int countEndWhitespace = 0;
        
        while ((first == ' ' || last == ' ') && (countStartWhitespace < s.length() / 2) && (countEndWhitespace < s.length() / 2)) {
            if(first == ' ') {
                countStartWhitespace++;
                first = s.charAt(countStartWhitespace);
            }
            if(last == ' ') {
                countEndWhitespace++;
                last = s.charAt(s.length() - 1 - countEndWhitespace);
            }
        }
        
        
        return s.substring(countStartWhitespace, s.length() - countEndWhitespace);
    }

Denis · Answer

'remove    arbitrary  spaces '.replace(/\s+/g, ' ').trim();

anonyma · Answer

DBMS vs File System

File System is challenging:
* Losing files
* Finding a file
* files are located in different physical computers
* should do the Backup regularly and with short time

So File system works only if you keep your self very organized . On the other hand, DBMS allows to :
* Store retrieve data with easy way
* manage concurrency
* Security rules to determine  access levels for users
* backup and recovery
* Data description : 
* Integrity : set of rules to determine that the data didn't changed . Example ; colum as varchar is varchar
* Define audit and logging
* Define indexing
* Define trigger and stored procedure

Remove arbitrary space from the string · Answer

Answer for "Remove space from the string"

import java.util.Queue;

//Remove arbitrary string
//Input :   The    sky is blue   .   
//Output: The sky is blue.



public class removeExtraSpaceString {
	public static void main(String args[]){
		String s ="   The    sky is blue   .   ";
		removeString(s);
	}
	public static void removeString(String s){
		System.out.println(s);
		String ss = s.trim();
		System.out.println(ss);
		StringBuilder sb = new StringBuilder();
		Queue q =null;
		int j=0, i=0;
		int n=ss.length();
		while(j

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