IDEA里打印数组元素显示出了内存地址

Question

打印数组元素，显示出了内存地址

public class Test {
public static void main(String[] args) {
SuperArray superArray = new SuperArray();
superArray.addToHeader("abc");
superArray.addToHeader("hello");
superArray.addToHeader("123");
superArray.addToHeader(new Student("zs",23));
System.out.println(superArray.arrayToString());

}

}

public void add(int index,Object data){
//游标往前走
currentIndex++;
if (currentIndex > elements.length - 2) {
Object[] temp = new Object[elements.length * 2];
for (int i = 0; i < elements.length; i++) {
temp[i] = elements[i];
}
elements = temp;
}
//移动位置，腾出空间
for (int i = currentIndex; i >= index; i--) {
elements[i+1] = elements[i];
}
elements[index] = data;
}

public void addToHeader(Object data){
this.add(0,data);
}

public class Student {
private String name;
private int age;

public Student() {
}

public Student(String name, int age) {
    this.name = name;
    this.age = age;
}

public void play(){
    System.out.println(this.name + "is playing");
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public int getAge() {
    return age;
}

public void setAge(int age) {
    this.age = age;
}

}

Answer 1

给你的Student类重写一下toString方法就可以了

public String toString() {
        return "name: " + this.name + "age: " + this.age;
    }