Class 类的用法

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public class Student {
private int age;
private String name;
public int getAge() {
return age;
}

public String getName() {    return name;}public void setName(String name) {    this.name = name;}

}

public class Test {

public static void main(String[] args) {    //Field fields=clazz.getFields();

// Field fields=clazz.getDeclared();
Class clazz = Student.class;
Student zhangsan = new Student();
try {
Field age = clazz.getDeclaredField(“age”);//得到指定名称的属age
age.setAccessible(true);//取消JAVA访问修饰符检查
age.set(zhangsan, 18);
age.setAccessible(false);//取消取消检查
System.out.println(zhangsan.getAge());
} catch (NoSuchFieldException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}

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