Share on Google+Share on Google+

naresh
string
1 Answer(s)      6 years and 10 months ago
Posted in : Java Beginners
1)how to reverse a string without using methods in stringbuffer?
2) how to retrieve username when u entered a mail id?

Ads

View Answers

June 5, 2010 at 11:14 AM


Hi Friend,

Try the following code:

1)
import java.util.*;
class StringReverse{
public static void main(String[]args){
Scanner input=new Scanner(System.in);
System.out.println("Enter string:");
String st=input.nextLine();
String str[]=st.split("");

for(int i=str.length-1;i>0;i--){
System.out.print(str[i]);

}
}
}

2)
import java.sql.*;
import java.util.*;

public class Retrieve {

public static void main(String[]args){
Scanner input =new Scanner(System.in);
System.out.print("Enter Email Id: ");
String email=input.nextLine();
try{
Class.forName("com.mysql.jdbc.Driver");
Connection connect =DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","root";);
Statement st = connect.createStatement();
ResultSet rs = st.executeQuery("select username from user_details where email='"+email+"'");
while (rs.next()) {
System.out.println(rs.getString("username") );

}
rs.close();
st.close();
connect.close();
}
catch(Exception ex){
System.out.println(ex);
}
}
}

Thanks









Related Tutorials/Questions & Answers:
STRING.....
STRING.....  plzz sent me d code for counting vowels in a string... gui programme
string
string   difference detween "public static void main (String[] args) " and "public static void main (String args[])" in java but it executes both... "String args[]" can mean a "string array called args which is an array
Advertisements
string
string  String helloString = new String(helloArray); System.out.println(helloString); i am unable to understand this. could u plz explain
string
string  a java program using string function to input any string... ArrangeStringAlphabetically { public static void main(String[] args) { Scanner input=new Scanner(System.in); System.out.print("Enter string
String
String  how to add spaces with string functions.?   Hi... String addSpaceToRight(String s, int n) { return String.format("%1$-" + n + "s", s); } public static String addSpaceToLeft(String s, int n) { return
String
characters in string?   import java.util.*; class RemoveDuplicateCharatcersFromString { public static String removeDuplicates(String s... < s.length(); i++) { String st = s.substring(i, i + 1
String
String  write down the code of remove any character from a given string without using any string function   please give me the code of remove any given character from a given string without using function
string
string   just i want to a program in a short form to the given string in buffered reader for example input string: Suresh Chandra Gupta output: S. C...; public class StringTest { public static void main(String [] args
string
string  a java program to input a string and display the string...*; import java.io.*; public class FirstLetter{ public static String capitalizeFirstLetter( String str ) { final StringTokenizer st = new StringTokenizer( str
string
ExtractWords { public static void main(String[] args) { Scanner input=new Scanner(System.in); System.out.print("Enter String: "); String st=input.nextLine(); String str[]=st.split(" "); for(int i=0
String
String  how to print in between numbers if the question "String s = "1,2,3,4,5,6,8,-25"" out must be 1 2,3,4,5,6,7,8,9,10,upto25
String
String  How to Convert sunnapu gopal to Sunnapu Gopal in java using String
String
String  write a program using string it should replace 'c'char to integer number as 1 in whole source
string
string  java prgm to find total occurence of a given string pattern in a sentence
string
string  java prgm to find total occurence of a given string pattern in a sentence
string
string  write a program to accept the string and store the reverse stream into another array and print
string
and also displaying that contain word? Like I want to find "a" in the string... and a character. It then count the occurrence of that character in the string and display... String_Example { public static void main(String[] args
string
string  program for String reverse and replace in c,c++,java e.g.Input:10,20,hello output:hello;20;10   Hi Friend, Try the following java...(String[] args) { String array[]=new String[5]; Scanner input
string
string  a java program using string function that computes your initials from your full name and display them   Please visit the following links: http://www.roseindia.net/tutorial/java/core/printInitials.html http
string
string  a java program using string function and access modifiers to automate the insurance company which will have to manage the information about policy holders Data Members: 1)Policy No 2)Name of policy holder 3)Address 4
(ii) String and String Buffer Class
(ii) String and String Buffer Class  difference between String and String Buffer Class
(ii) String and String Buffer Class
String and String Buffer Class  differences between : String and String Buffer Class
String Ques
String Ques  what is difference between String str="abc"; and String str=new String("abc");   Hello Friend, Differences: 1)String str=new string("abc") creates two objects, one in heap memory and one in string
(ii) String and String Buffer Class
String and String Buffer Class  difference between String and String... between String and StringBuffer 1) String object is immutable whereas StringBuffer objects are mutable. 2) String objects are constants
string program
string program  wap to find single occurrence of given string in java without using any predefined method
String progrm
String progrm  wap to count character of given string in java without using any method
String conversion
String conversion  I want to convert a string of mix cases(lower and upper case) to vice versa. ex. HellO should be printed to hELLo. the string comes from user using datainputstream. Also sending individual chars of string
Tutorials   
Java Spring Hibernate Struts Training Retrieve database from the table dynamically in jsp from oracle using servlet What does core Java include? java What are some way to learn Java quickly? Is it required to learn Java before learning Java Script? Is it necessary to learn java script before learning PHP? Are HTML5 and Java Script boosts Java career? Is Java object oriented? Fingerprint application with Java Uninstall Oracle Virtual Box JSON to HashMap Free Java online Training I want example of Control Statement in Java ANSI Color Codes with Python Create a Program that Calculates Input What is difference between JDK,JRE and JVM? How to see ubuntu version on server? How to get Page Source in Selenium (WebDriver) using Java? The path to the driver executable must be set by the webdriver.gecko.driver system property parse data from a link in java Java Program Qns using BlueJ How to fix HAX Kernel Module Is Not Installed error? Installing Audacity Looking for code Logic to check track changes & Coments in MSWord, MSWordx, MSExcel, MSExcelx is ON/OFF Installing JDK on Mac SAX Parser exception ERROR 601 (42P00): Syntax error. Encountered Thread java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileItemFactory How to install Ubuntu 16.04 LTS? HttpServletRequest cannot be resolved to a type in eclipse - Solved Unhandled event loop exception GC overhead limit exceeded Spring Data jpa with apache phoenix Caused by: java.lang.IllegalArgumentException: Not a host:port pair: PBUF o.a.h.h.z.RecoverableZooKeeper - Possibly transient ZooKeeper, quorum= com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager class not found com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager not found How to download and install Java 8 on Windows? How to uninstall JDK 7? How to install gtk-doc-tools package in Ubuntu? How to install Oracle JDK 8 on Ubuntu? ejabberd_ctl.beam not found - Solved How to convert date to UTC format in Java? How to install autoconf, automake and libtool in Ubuntu 15.10? How to convert current date to mm dd yyyy format in Java? How to convert current date to dd mm yyyy format in Java? How to stop window closing in "internalFrameClosing" event. How to find list of all index in Neo4j? neo4j-server.properties file location SASLError using PLAIN: not-authorized

Ads

 
Advertisement null

Ads