java - How to replace space with hyphen? -


I want to change space with space

Suppose my code is 

  stringbuff tokenr = new stringbuffer (); Tokenstr.append ("The technician education system of the Cabinet has approved the following");   
 I want output  
  "Technician-education-system-cabinet-approved-has the following"   < P> Thanks   
 
 
 Like this,  
  stringbuffer tokenstr = new stringbuffer (); Tokenstr.append ("The technician education system of the Cabinet has approved the following"); System.out.println (tokenstr.toString (). ReplaceAll ("", "-"));   
 and also like this  
  system.out.println (tokenstr.toString (). ReplaceAll ("\\ s +", "-" ));

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