text-format

import java.io.UnsupportedEncodingException;

public class TextFormat {

	public static void main(String[] args) {
		
		try {
			String output = String.format("%s%3s", buildSpanAlignLeft("字符串1", 10), "A");
			System.out.print(output);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}
	
	private static int getGbkLength(String str) throws UnsupportedEncodingException {
		return str.getBytes("GBK").length;
	}
	
	private static String buildSpanAlignLeft(String str, int width) throws UnsupportedEncodingException {
		StringBuffer sb = new StringBuffer();
		sb.append(str);
		for (int i = 0; i < width - getGbkLength(str); i++) {
			sb.append(' ');
		}
		return sb.toString();
	}
	
	private static String buildSpanAlignRight(String str, int width) throws UnsupportedEncodingException {
		StringBuffer sb = new StringBuffer();
		for (int i = 0; i < width - getGbkLength(str); i++) {
			sb.append(' ');
		}
		sb.append(str);
		return sb.toString();
	}
}