java中Boolean源码
//String 转boolean
public static Boolean valueOf(String s) { return toBoolean(s) ? TRUE : FALSE;}
private static boolean toBoolean(String name) {
return ((name != null) && name.equalsIgnoreCase("true"));}
//boolean 转 String
public static String toString(boolean b) {
return b ? "true" : "false";}
public String toString() {
return value ? "true" : "false"; }