Question

How to move all uppercase characters to the end of string in Java

Answer 1

public class MyClass {
    static public String move_uppercase_to_end(String s) { 
        int len = s.length(); 
        String lowercase  = ""; 
        String uppercase = ""; 
  
        char ch; 
        for (int i = 0; i < len; i++) { 
            ch = s.charAt(i); 
  
            if (ch >= 'A' && ch <= 'Z') { 
                uppercase += ch; 
            } 
            else { 
                lowercase += ch; 
            } 
        } 
        return lowercase + uppercase; 
    } 
  
    public static void main(String args[]) {
        String s = "C++ PHP Java"; 

        System.out.println(move_uppercase_to_end(s)); 
    }
}


/*
run:

++  avaCPHPJ

*/

 

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