格式打印--PPrint

[java]代码库

public class PPrint {
	public static String pformat(Collection<?> c) {
		if(c.size() == 0) return "[]";
		StringBuilder result = new StringBuilder("[");
		for(Object elem : c) {
			if(c.size() != 1)
			result.append("\n ");
			result.append(elem);
		}
		if(c.size() != 1)
			result.append("\n");
		result.append("]");
		return result.toString();
	}
}