Re: How to creat a newinstance with a param??# Java - 爪哇娇娃
y*e
1 楼
You may have to use reflection.
An example:
import java.lang.reflect.*;
import java.io.*;
class Temp {
public Temp(String str){
System.out.println(str);}
}
public class Test{
public static void main(String[] args){
String arg=new String("test");
Object[] intArgs=new Object[]{arg};
String classname = "Temp";
try{
Class a = Class.forName(classname);
Constructor b = a.getConstructor(new Class[]{String.class});
Temp temp=(Temp)b.newInstance(intArgs);
}catch(Exception e){
}
}
}
An example:
import java.lang.reflect.*;
import java.io.*;
class Temp {
public Temp(String str){
System.out.println(str);}
}
public class Test{
public static void main(String[] args){
String arg=new String("test");
Object[] intArgs=new Object[]{arg};
String classname = "Temp";
try{
Class a = Class.forName(classname);
Constructor b = a.getConstructor(new Class[]{String.class});
Temp temp=(Temp)b.newInstance(intArgs);
}catch(Exception e){
}
}
}