/* */ package reflection; /* */ /* */ import java.lang.reflect.Constructor; /* */ import java.lang.reflect.Field; /* */ import java.lang.reflect.Method; /* */ /* */ public class ClassUtil /* */ { /* */ public static void printMethodMessage(Object obj) { /* 10 */ Class> c = obj.getClass(); /* */ /* */ /* */ /* 14 */ Method[] methods = c.getMethods(); /* */ /* 16 */ for (Method method : methods) { /* 17 */ Class> returnType = method.getReturnType(); /* */ /* 19 */ System.out.print(returnType.getSimpleName() + " " + method.getName() + "("); /* 20 */ Class[] paramTypes = method.getParameterTypes(); /* 21 */ String strParams = ""; /* 22 */ for (Class paramType : paramTypes) { /* 23 */ strParams = strParams + paramType.getSimpleName() + ", "; /* */ } /* 25 */ if (strParams.length() > 0) { /* 26 */ strParams = strParams.substring(0, strParams.length() - 2); /* */ } /* 28 */ System.out.println(strParams + ")"); /* */ } /* */ } /* */ /* */ /* */ public static void printFieldMessage(Object o) { /* 34 */ Class> c = o.getClass(); /* */ /* 36 */ Field[] fields = c.getDeclaredFields(); /* */ /* 38 */ for (Field field : fields) { /* 39 */ Class> fieldType = field.getType(); /* 40 */ String typeName = fieldType.getName(); /* 41 */ String fieldName = field.getName(); /* 42 */ System.out.println(fieldName + ": " + typeName); /* */ } /* */ } /* */ /* */ public static void printCtorMessage(Object o) { /* 47 */ Class> c = o.getClass(); /* */ /* 49 */ Constructor[] ctors = (Constructor[])c.getDeclaredConstructors(); /* 50 */ for (Constructor ctor : ctors) { /* */ /* 52 */ System.out.print(ctor.getName() + "("); /* 53 */ Class[] paramTypes = ctor.getParameterTypes(); /* 54 */ String strParams = ""; /* 55 */ for (Class paramType : paramTypes) { /* 56 */ System.out.print(strParams); /* 57 */ System.out.print(paramType.getSimpleName()); /* 58 */ strParams = ", "; /* */ } /* 60 */ System.out.println(")"); /* */ } /* */ } /* */ } /* Location: /Volumes/TXS.128G/hope useful/practice/2020.jar!/reflection/ClassUtil.class * Java compiler version: 8 (52.0) * JD-Core Version: 1.1.3 */