javapclass.java

学了2个月java 练习用~ 可以看下 希望同意

import java.lang.reflect.*;

public class javapClass
{
	public static void main(String[] args) throws Exception
	{
		Class test=Class.forName(args[0]);
		System.out.println(test.getName());
		System.out.println("{");
		getDeclaredFields(test);
//		getDeclaredConstructors(test);
//		getDeclaredMethods(test);
		constructors(test);
		method(test);

		System.out.println("}");
	}

	public static void getDeclaredConstructors(Class a){//构造
		Constructor[] nowconstructor=a.getDeclaredConstructors();
		for (int i=0;i<nowconstructor.length ;i++ ){
			System.out.println(nowconstructor[i].toString());
		}
		System.out.println();
	}

	public static void getDeclaredFields(Class a){ //字段

		Field[] nowfield=a.getDeclaredFields();
		for (int i=0;i<nowfield.length ;i++ ){
			nowfield[i].setAccessible(true);
			System.out.print(Modifier.toString(nowfield[i].getModifiers())+" ");
			Class newa=nowfield[i].getType();
			System.out.print(newa.getName()+" ");
			System.out.print(nowfield[i].getName()+";\n");
		}
		System.out.println();

	}

	public static void getDeclaredMethods(Class a){ //方法
		Method[] nowmethod=a.getDeclaredMethods();
		for (int i=0;i<nowmethod.length ;i++ ){
			System.out.println(nowmethod[i].toString());
		}
		System.out.println();
	}

	public static void method(Class a){
		Method[] nowmethod=a.getDeclaredMethods();
		for (int i=0;i<nowmethod.length ;i++ ){
			nowmethod[i].setAccessible(true);
			System.out.print(Modifier.toString(nowmethod[i].getModifiers())+" ");
			Class nowreturn=nowmethod[i].getReturnType();
			System.out.print(nowreturn.getName()+" "+nowmethod[i].getName()+"(");
			Class[] typename=nowmethod[i].getParameterTypes();
			for (int j=0;j<typename.length ;j++ ){
				if(j>0)	System.out.print(",");
				System.out.print(typename[j].getName());
			}
				System.out.println("){}");
		}
		System.out.println();
	}

	public static void constructors(Class a){
		Constructor[] nowconstructor=a.getDeclaredConstructors();
		for (int i=0;i<nowconstructor.length ;i++ ){
			nowconstructor[i].setAccessible(true);
			System.out.print(Modifier.toString(nowconstructor[i].getModifiers())+" ");
			System.out.print(nowconstructor[i].getName()+"(");
			Class[] typename=nowconstructor[i].getParameterTypes();
			for (int j=0;j<typename.length ;j++ ){
				if(j>0)	System.out.print(",");
				System.out.print(typename[j].getName());
			}
			System.out.println("){}");
		}
		System.out.println();
	}
}