كيف يمكنني أستخدام "private Class"

السلام عليكــم ورحمـة الله وبركاتــه

هل تعنبن استعمال ناتج "private method" داخل method أخرى public؟؟

وهل هاتان الmethods توجدان داخل نفس الclass؟؟

1.  
2.  
3. //**** i import a special class for input and output called StaugIO****
4. //**** the StaugIO calss is countained within the staugIO package****
5. import staugIO.StaugIO
6.  
7. //application class
8. public class project //class is start now
9. {
10.  
11. public static void main(String[] args) //main method is start now
12. {
13. //here i try to define a StaugIO (input and output object) class object
14. StaugIO io = new StaugIO()
15.  
16. //define and initialization string to store name
17. String name =""
18.  
19. //use io to call method
20. //return the string value entared by the user
21. //assign user entar his name
22. name=io.readString("Please Enter yor Full name")
23.  
24. //define and initialization integer to store account
25. int account
26.  
27. //return the integer value entared by the user
28. //assign user entar his account
29. account=io.readInt("Please Enter your current balance")
30.  
31. //define and initialization integer to store deposit
32. int deposit
33.  
34. //define and initialization integer to store totaldeposit
35. int totaldeposit=0
36.  
37. //use io to call method
38. //return the integer value entared by the user
39. //assign user entar his deposit
40. deposit=io.readInt("Please Enter the amount you want to deposit"+ "nIn case you do NOT
    want to depsit..please Enter 0")
41.  
42.  
43. //****i add a while loop to make the programe aske the user more than one time ****
44. //****the loop will keep asking the user if the number must be grater than 0****
45. while(deposit>0)
46.  
47. //****I frame the body of the while loop with curly braces because it has more than one
    statement****
48. //**** while loop is starting now*****
49. {
50.  
51. //i used this statement to add the deposit
52. totaldeposit += deposit
53.  
54. //use io to call method
55. //return the integer value entared by the user if the useer entar number grater than zero
56. //assign user entar his deposit
57. deposit=io.readInt("Please Enter the amount you want to deposit"+ "nIn case you do NOT
    want to depsit..please Enter 0")
58.  
59. } //while loop end
60.  
61. //define and initialization integer to store withdraw
62. int withdraw
63.  
64. //define and initialization integer to store totalwithdraw
65. int totalwithdraw=0
66.  
67. //use io to call method
68. //return the integer value entared by the user if the useer entar number grater than zero
69. //assign user entar his withdraw
70. withdraw=io.readInt("Please Enter the amount you want to withdraw"+ "nIn case you do N
    OT wnat to withdraw..please Enter 0")
71.  
72. //****i add a while loop to make the programe aske the user more than one time ****
73. //****the loop will keep asking the user if the number is grater than 0****
74. while(withdraw>0)
75.  
76. //the loop will start if the withdraw is less or equal to the balance
77. if(withdraw<=balance(account, totaldeposit, totalwithdraw))
78.  
79. //****I frame the body of the "if" with curly braces because it has more than one statem
    ent****
80. //while if start
81. {
82.  
83. //i used this statement to add the deposit
84. totalwithdraw +=withdraw
85.  
86. //use io to call method
87. //return the integer value entared by the user if the useer entar number is less or equal
    to his balance
88. //assign user entar his withdraw
89. withdraw=io.readInt("Please Enter the amount you want to withdraw"+ "nIf you do NOT wn
    at to withdraw..please Enter 0")
90.  
91. } //if is end
92.  
93. //i use else in case the user entar number grater than his balance
94. else
95.  
96. //****I frame the body of the "else" with curly braces because it has more than one sta
    tement****
97. { //else start
98.  
99. //use io to call method
100. //i add this becuse i try to write a string to an information dialog box
101. io.writeInfo("withdraw failed"+"nSorry you can NOT withdraw "+ withdraw + " becuse "+w
     ithdraw+ " is grater than your balance" + balance(account, totaldeposit, totalwithdraw))
102.  
103. //i try to break the calcluation of the withdraw, when the user entar withdraw less than
     his balance
104. break
105.  
106. } //else end
107.  
108. //use io to call method
109. //i add this becuse i try to write a string "report" to an information dialog box
110. io.writeInfo("User Name is " + name + "nYour current balance is SR " + account + "nTh
     e amount you want to deposit to your account is SR " + totaldeposit + "nYou withdraw from You
     r current balance is SR " + totalwithdraw + "nYour balance after adding deposit and taking wi
     thdraw is SR " + balance(account, totaldeposit, totalwithdraw)
111. +"nThe intrest rate for your final balance is SR " + intrest(account, totaldeposit, to
     talwithdraw)+"n Your Final amount with the itrest rate is SR " + finalamount(account, totaldep
     osit, totalwithdraw))
112.  
113.  
114.  
115. }//main end
116.  
117. //balance method
118. public static int balance(int n1,int n2,int n3)
119. { //balance method start
120. int calc
121. calc=(n1+n2)-n3
122. return calc //return calc to its calling function
123. } //balance end
124.  
125. //interst method
126. public static double intrest(int n1,int n2,int n3)
127.  
128. { //interst start
129. double intrest
130. intrest= balance(n1,n2,n3)*.12
131. return intrest //return intrest to its calling function
132. }//intrest end
133.  
134. //finalamount method
135. public static double finalamount(int n1,int n2,int n3)
136. { //final amount start
137. double add
138. add = balance(n1,n2,n3) + intrest(n1,n2,n3)
139. return add //return add to its calling function
140. } //final amount end
141.  
142. } //class end
143.  
144.  
145.  
     
     

1. public static double finalamount(int n1,int n2,int n3)
2. { //final amount start
3. double add
4. add = balance(n1,n2,n3) + intrest(n1,n2,n3)
5. return add //return add to its calling function
6. } //final amount end
7.  
   
   

السلام عليكــم ورحمـة الله وبركاتــه

يازمك فقط تغيير public إلى private

الmethod "finalamount" يمكنها استعمال intrest بالرغم من أنها private لأنه كلتاهما توجدان في نفس الclass

المشكل سيطرح إذا أردت استعمال intrest من داخل class اخرى

Zaianb كتب:

عندي سؤال اذا سويتهم من كلاسين مختلفين

ايش لازم اغير..؟؟

في هذه الحالة لازم public بالنسبة للmethod التي ستستعمليها

مثال

class class1

في المثال، method1 هي public، يعني ممكن أن نستعملها داخل class أخرى

method2 و method3 تستعملان كلتاهما method1، أردت فقط أن أبين أنه يمكن استعمال public method داخل public or private method