char ch = 'a'; switch (ch){ case 'a': case 'A': System.out.print(ch); break; case 'b': case 'B': System.out.print(ch); break; case 'c': case 'C': System.out.print(ch); break; case 'd': case 'D': System.out.print(ch);}
void main(){ int sum=1, index = 9; do{ index = index – 1; sum *= 2; }while( index > 9 );}