var a = 5;
/*a = a - 2;
a += 1;
*/
a *= 3;
請問上段程式執行完後變數a的值為何?
Java-前導&運算子
Quiz
•
Computers
•
1st Grade - University
•
Medium
闕河正 闕河正
Used 2+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
var a = 5;
/*a = a - 2;
a += 1;
*/
a *= 3;
請問上段程式執行完後變數a的值為何?
15
9
12
5
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
java每一段程式的結尾需添加什麼符號
:
>
<
;
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
System.out.printf(3*(2-5)-8)
請問此段程式輸出為何?
1
5
9
15
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
a = 80.3625
請選擇一段程式可正確的輸出80.36
System.out.printf("%.2f\n" , a);
System.out.printf("%.2d\n" , a);
System.out.printf("%2f\n" , a);
System.out.printf("%2d\n" , a);
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
請問下段程式的結果各為何?
A.2.0/3.0
B.2f/3f
C.2/3
A.0.6666666
B.0.6666666
C.0.6666666
A.0.6666666
B.0.6666667
C.0
A.0.6666667
B.0.6666666
C.0
A.0.6666666
B.0.6666667
C.0.6666667
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
int grade = 60;
String point = "成績:"
point += "grade = " + grade;
成績:grade = 60
成績 = 60
成績 = grade
grade = 60
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
int a = 10;
byte b = a * 13;
請問b的值為何?
130
-128
-126
127
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