Completely reverse the string by words, for example, & quot; abc & quot; To & quot; CBA &

Source: Internet
Author: User

This is a frequently asked question during the interview. We will use a string containing 26 English letters as an example to answer this question.
[Java]
Public class StringReverse {
Public static void main (String [] args ){
// The First Method)
String str = "Hello World ";
System. out. println ("original string:" + str );
System. out. print ("reverse string :");
For (int I = str. length (); I> 0; I --){
System. out. print (str. charAt (I-1 ));
}
System. out. println ();
System. out. println ("####################################" );
// The Second Method
StringBuffer sb = new StringBuffer (str );
System. out. println ("original string:" + str );
System. out. print ("reverse string :");
System. out. print (sb. reverse (). toString ());
}
}

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