ThinkingInJava/reusingClasses/Exercise1.java at main · viktorvoltz/ThinkingInJava · GitHub

33 lines (29 loc) · 667 Bytes

class School {

private String s;

School(){

System.out.println("School()");

s = "constructed";

}

public String toString(){

return s;

}

public class Exercise1{

private String classes, students;

private School school;

public Exercise1(){

System.out.println("Exercise1");

classes = "classes";

students = "students";

}

public String toString(){

if(school == null){

school = new School();

}

return classes;

}

public static void main(String[] args){

Exercise1 exercise = new Exercise1();

System.out.println("x");

}

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