Thread: Reverse Words Problem

Hi, i am trying to create a method that will accept a string, it will then return a string with every pair of words in the first string reversed.

For example, input string: " Hello this is a test string to reverse every pair of words "
output string: " this Hello a is string test reverse to pair every words of"

so far i wrote the code below but i am getting out of bounds errors and can't get it to work. can someone please help me and/or suggest the best way to do this..I really appreciate it. Thanks.

//

public static String wordPairReverse(String source){

StringTokenizer st = new StringTokenizer(source, " ");
String strReversedLine = "";
String tempString = "";
String pairs[]= new String[20];
char j=0;
char i=0;

while(st.hasMoreTokens()){

while(j<2){

tempString=st.nextToken()+" "+tempString;
j++;
}
j=0;
pairs[i]=tempString;
i++;
}

while(i>0){
strReversedLine = pairs[i] + " " + strReversedLine;
i--;
}

return strReversedLine;

}
//

Please use a Stack collection for your task



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