Question

How to use copy constructor to copy the values of one object into another with Java

Answer 1

public class worker {  
    int id;  
    String name;  

    worker(int n, String nm){  
        id = n;  
        name = nm;  
    }  
    
    // copy constructor 
    worker(worker w) {  
        id = w.id;  
        name =w.name;  
    }
    
    void print() {
        System.out.println(id + " " + name);
    }  
   
    public static void main(String args[]) {  
        worker w1 = new worker(876234, "Dan");  
        worker w2 = new worker(w1); 
        
        w1.print();  
        w2.print();  
   }  
}  



/*

run:

876234 Dan
876234 Dan

*/

 

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