Object类学习 equals() 方法和toString()方法覆写

1. classPerson
2. {
3. privateStringname;
4. privateintage;
5. publicPerson(Stringname,intage)
6. {
7. this.name=name;
8. this.age=age;
9. }
11. publicStringtoString()
12. {
13. return"Name:"+this.name+",Age:"+this.age;
14. }
16. publicbooleanequals(Objectobj)
17. {
18. if(!(objinstanceofPerson))
19. {
20. returnfalse;
21. }
22. Personp=(Person)obj;
23. booleanflag=false;
25. if(this.name.equals(p.name)&this.age==p.age)
26. {
27. flag=true;
28. }
30. returnflag;
31. }
32. }
34. publicclassOODemo02
35. {
36. publicstaticvoidmain(String[]agrs)
37. {
38. Personp1=newPerson("lincon",24);
39. Personp2=newPerson("lincon",24);
40. System.out.println(p1.equals(p2));
41. System.out.println(p1.equals(123));
42. System.out.println(p1);
43. }
44. }