Java·´Éä»úÖÆ:Constructor!
import org.junit.Test;
public class ConstructorTest {
@Test @SuppressWarnings("unchecked")
public void testConstructor(){
try {
Class clazz = Class.forName("cn.vicky.utils.User");
Method method = clazz.getDeclaredMethod("getName");
Constructor<? extends Live> constructor = clazz.getConstructor(String.class);
System.out.println(method.invoke(constructor.newInstance("Vicky")));
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
}
}
}
abstract class Live{
String name;
public Live(String name) {
this.name = name;
}
public String getName() {
return name;
}
}
class User extends Live{
public User(String name) {
super(name);
}
public String getName() {
return " ---> " +name;
}
}
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---> Vicky
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import java.util.*;
public class Map {
Vector<int[]> v = new Vector<int[]>();
Vector<Integer> vv = new Vector<Integer>();
Map() {
int[] array = { 1, 2, 3, 4, 5 };
Scanner s = new Scanner(System.in);
int x = s.nextInt();
pro(array, 0, x);
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import java.util.regex.*;
public final class RegExpValidator
{
/**
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