project3 blockchain

public class Platypus {
    String name;
 
    Platypus(String input) {
        name = input;
    }
 
    Platypus() {
        this("John/Mary Doe");
    }
 
    public static void main(String args[]) {
        Platypus p1 = new Platypus("digger");
        Platypus p2 = new Platypus();
        System.out.println(p1.name + "----" + p2.name);
    }
}
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作者：hai_cheng001 
来源：CSDN 
原文：https://blog.csdn.net/caohaicheng/article/details/14147099 
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