String 将字符串反转

public class Test {

	/**
	 * @param args
	 */
	public static void main(String[] args) {

		String context = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
		
		String str = "";

		for(int i = context.length(); i > 0;i--){
			str+= context.substring(i-1,i);
		}
		System.out.println(str.toString());
	}

}