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  1. class changeCase {    
  2.     public static void main(String[] args) {    
  3.  
  4.         String str1="Great Power";    
  5.         StringBuffer newStr=new StringBuffer(str1);    
  6.  
  7.         for(int i = 0; i < str1.length(); i++) {    
  8.  
  9.             //Checks for lower case character    
  10.             if(java.lang.Character.isLowerCase(str1.charAt(i))) {    
  11.                 //Convert it into upper case using toUpperCase() function    
  12.                 newStr.setCharAt(i, java.lang.Character.toUpperCase(str1.charAt(i)));    
  13.             }    
  14.             //Checks for upper case character    
  15.             else if(java.lang.Character.isUpperCase(str1.charAt(i))) {    
  16.                 //Convert it into upper case using toLowerCase() function    
  17.                 newStr.setCharAt(i, java.lang.Character.toLowerCase(str1.charAt(i)));    
  18.             }    
  19.         }    
  20.         System.out.println("String after case conversion : " + newStr);    
  21.     }    
  22. }
Success #stdin #stdout 0.12s 51560KB
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Standard input is empty
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String after case conversion : gREAT pOWER
https://ideone.com/pZbEXX
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

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