let me know incase you have doubt with this code
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package frame;
import java.util.Scanner;
/**
*
* @author Pardeep
*/
public class Reverse {
public void test(){
int n=0;
int c=0;
Scanner sc=new Scanner(System.in);
n=sc.nextInt(); //count no of testcases
sc.nextLine();
c = n;
while(n>0){
String str=sc.nextLine();
String[] inputReverse = str.split(" ");
StringBuffer sb = new StringBuffer();
for(int k = inputReverse.length -1 ; k >= 0;k--){
sb.append(inputReverse[k]);
sb.append(" ");
}
System.out.println("Case #:"+(c-n+1) +" "+sb.toString());
n--;
}
}
public static void main(String a[]){
new Reverse().test();
}
}
On Sat, Mar 24, 2012 at 12:30 AM, mandeep <[email protected]> wrote:
> well i really don not about that....will you please elaborate this...
>
>
> On Sat, Mar 24, 2012 at 12:25 AM, Ashish Kumar <[email protected]>wrote:
>
>> i need to study ur code for the issues u wanted to explain.
>> rather one suggestion if you are using java then why dont u utilize
>> string.split() api ....
>>
>>
>> On Fri, Mar 23, 2012 at 11:13 PM, Registered user <
>> [email protected]> wrote:
>>
>>> yes as Amahdy said :
>>>
>>>
>>>
>>>
>>> just introduce one more line n ur program will run correctly
>>>
>>>
>>>
>>>
>>> it works.... someone plz explain why it is so....
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> import java.util.Scanner;
>>>
>>>
>>>
>>>
>>> /**
>>> *
>>> * @author Pardeep
>>> */
>>> public class Reverse {
>>> public void test(){
>>> int n=0,l=0,i=0;
>>> int j=0,c=0;
>>> Scanner sc=new Scanner(System.in);
>>> n=sc.nextInt(); //count no of test
>>> cases
>>> while(n>0){
>>> String strn="";
>>> String str1=sc.nextLine();
>>> String str=sc.nextLine();
>>> //String str=sc.nex
>>>
>>>
>>>
>>>
>>> l=str.length();
>>> String[] ar=new String[l];
>>> j=0;
>>> int count=0;
>>> for(i=0;i<str.length();i++){ //count no of blank
>>> spaces in string
>>> if(str.charAt(i)==' '){
>>> count++;
>>> }
>>> }
>>> i=0;
>>> for(i=str.length()-1;i>=0;i--){ //reverse the string
>>> ar[j]=String.valueOf(str.charAt(i)); //store the value in
>>> array ar[]
>>> //System.out.println("while.."+ar[j]+j);
>>> j+=1; //then increase
>>> value in array element
>>> if(str.charAt(i)==' '){ //if space occur
>>> in string then pop up all array element and add in string variable
>>> strn
>>> for(int k=j-1;k>=0;k--){
>>> strn+=ar[k];
>>> }
>>> j=0; // j is again
>>> set to j=0
>>> count--;//System.out.println(count); //count is
>>> decremented
>>> } //now we have
>>> reversed the string and store it in string (strn),but not the first
>>> word of string
>>> if(count==0){ //if count
>>> is zero then
>>> strn+=" "; //space is
>>> added to string
>>> for(int m=0;m<=i;m++){ //variable
>>> m is initialised to 0 and upto i
>>> strn+=str.charAt(m); //store
>>> each char in the string (strn)
>>> }
>>> i=-1;
>>> }
>>> }c++;
>>> System.out.println("Case #:"+c +strn);
>>> //Error:-output is printed (but getting space at first position)
>>>
>>>
>>>
>>>
>>> n--;
>>> }
>>>
>>>
>>>
>>>
>>> }
>>> public static void main(String a[]){
>>> new Reverse().test();
>>> }
>>> }
>>>
>>>
>>> On Mar 23, 10:02 pm, Amahdy <[email protected]> wrote:
>>> > I think your problem is here:
>>> >
>>> > n = sc.nextInt();
>>> >
>>> > You read the integer (the count) but still at the same line, so you
>>> need to
>>> > move one more line by typing:
>>> >
>>> > sc.nextLine();
>>> >
>>> > After it.
>>> >
>>> > I'm not sure if your code is correct though.
>>> >
>>> > -- AMahdy!www.amahdy.net
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > On Wed, Mar 21, 2012 at 14:20, mandy <[email protected]> wrote:
>>> > > here is a link to the problem...
>>> > >http://code.google.com/codejam/contest/351101/dashboard#s=p1
>>> > > Input:-this is a test
>>> > > Output:-test a is this
>>> > > I'm getting error in output and in while loop is not executing
>>> > > properly...
>>> > > So pls tell me what's wrong with this code...
>>> > > Thanks a lot.
>>> >
>>> > > Mine solution is this..
>>> >
>>> > > /*
>>> > > * To change this template, choose Tools | Templates
>>> > > * and open the template in the editor.
>>> > > */
>>> > > package frame;
>>> >
>>> > > import java.util.Scanner;
>>> >
>>> > > /**
>>> > > *
>>> > > * @author Pardeep
>>> > > */
>>> > > public class Reverse {
>>> > > public void test(){
>>> > > int n=0,l=0,i=0;
>>> > > int j=0,c=0;
>>> > > Scanner sc=new Scanner(System.in);
>>> > > n=sc.nextInt(); //count no of test
>>> > > cases
>>> > > while(n>0){
>>> > > String strn="";
>>> > > String str=sc.nextLine();
>>> > > l=str.length();
>>> > > String[] ar=new String[l];
>>> > > j=0;
>>> > > int count=0;
>>> > > for(i=0;i<str.length();i++){ //count no of blank
>>> > > spaces in string
>>> > > if(str.charAt(i)==' '){
>>> > > count++;
>>> > > }
>>> > > }
>>> > > i=0;
>>> > > for(i=str.length()-1;i>=0;i--){ //reverse the string
>>> > > ar[j]=String.valueOf(str.charAt(i)); //store the value
>>> > > in array ar[]
>>> > > //System.out.println("while.."+ar[j]+j);
>>> > > j+=1; //then increase
>>> > > value in array element
>>> > > if(str.charAt(i)==' '){ //if space occur
>>> > > in string then pop up all array element and add in string variable
>>> > > strn
>>> > > for(int k=j-1;k>=0;k--){
>>> > > strn+=ar[k];
>>> > > }
>>> > > j=0; // j is again
>>> > > set to j=0
>>> > > count--;//System.out.println(count); //count is
>>> > > decremented
>>> > > } //now we
>>> > > have reversed the string and store it in string (strn),but not the
>>> > > first word of string
>>> > > if(count==0){ //if count
>>> > > is zero then
>>> > > strn+=" "; //space is
>>> > > added to string
>>> > > for(int m=0;m<=i;m++){ //variable
>>> > > m is initialised to 0 and upto i
>>> > > strn+=str.charAt(m); //store
>>> > > each char in the string (strn)
>>> > > }
>>> > > i=-1;
>>> > > }
>>> > > }c++;
>>> > > System.out.println("Case #:"+c
>>> > > +strn); //Error:-output is printed (but getting
>>> > > space at first position)
>>> >
>>> > > n--;
>>> > > }
>>> >
>>> > > }
>>> > > public static void main(String a[]){
>>> > > new Reverse().test();
>>> > > }
>>> > > }
>>> >
>>> > > --
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>>>
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>>>
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