java List深拷贝示例

示例一

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class Test extends SupTeset {
    public static void main(String [] args){
        List<String> s=new ArrayList<>();
        Collections.addAll(s,new String[3]);
        List<String> ss=new ArrayList<>(Arrays.asList("a","b","c"));
        Collections.copy(s,ss);
    }

}

示例

示例一
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class Test extends SupTeset {
    public static void main(String [] args){

　　　　 List<String> s=Arrays.asList(new String[3]);

　　　　 List<String> ss=new ArrayList<>(Arrays.asList("a","b","c"));
        Collections.copy(s,ss);
    }

}