class StringPattern
{
    public static void main(String[] args) 
    {

        String st="hello";
        StringBuffer buffer=new StringBuffer(st);
        for(int i=0;i<st.length();i++){
            char ch=Character.toUpperCase(st.charAt(i));
            String str=buffer.replace(i,i+1,Character.toString(ch)).toString();
            System.out.println(str);
            buffer.replace(0,st.length(),"");
            buffer.append(st);
        }
    }
}

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