04.练习课

Posted 2020-08-04

• 练习一：将学生的分数按照标准分为优，良，中，差级别。

1. publicclassTest01{
2. publicstaticvoid main(String args[]){
3. int score =80;
4. if(score >85&& score <=100){
5. System.out.println("成绩为优");
6. }
7. elseif(score >75&& score <=85){
8. System.out.println("成绩为良");
9. }
10. elseif(score >60&& score <=75){
11. System.out.println("成绩为中");
12. }
13. elseif(score <=60&& score >=0){
14. System.out.println("成绩为差");
15. }
16. elseif(score >100|| score <0){
17. System.out.println("成绩不再正常范围之内");
18. }
19. }
20. }

 

• 练习二：猜拳游戏：定义两个char类型变量，分别代表两个玩家出拳，使用if...else...对结果进行判断。

1. publicclassTest02{
2. publicstaticvoid main(String args[]){
3. char play1 =‘s‘;
4. char play2 =‘j‘;
5. if(play1 ==‘s‘&& play2 ==‘s‘){
6. System.out.println("平");
7. }
8. elseif(play1 ==‘s‘&& play2 ==‘j‘){
9. System.out.println("play1 win");
10. }
11. elseif(play1 ==‘s‘&& play2 ==‘b‘){
12. System.out.println("play2 win");
13. }
14. elseif(play1 ==‘j‘&& play2 ==‘s‘){
15. System.out.println("play2 win");
16. }
17. elseif(play1 ==‘j‘&& play2 ==‘j‘){
18. System.out.println("平");
19. }
20. elseif(play1 ==‘j‘&& play2 ==‘b‘){
21. System.out.println("play1 win");
22. }
23. elseif(play1 ==‘b‘&& play2 ==‘s‘){
24. System.out.println("play1 win");
25. }
26. elseif(play1 ==‘b‘&& play2 ==‘j‘){
27. System.out.println("play2 win");
28. }
29. elseif(play1 ==‘b‘&& play2 ==‘b‘){
30. System.out.println("平");
31. }
32. }
33. }

来自为知笔记(Wiz)