Code-School/intro6.html at master · viduni/Code-School · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
<html>
	<head>
<link type="text/css" rel="stylesheet" href="example.css"></link>

</head>

	<body bgcolor="" >
	<ul id="u1">
  <li id="l1"><a class="ac" href="Home.html" id="a1"><b>Home</b></a></li>
  <li id="l1"><a href="AboutUs.html" id="a2"><b>About Us</b></a></li>
  <li id="l1"><a href="#contact" id="a2"><b>History of Java</b></a></li>
  <li id="l1"><a href="#about" id="a2"><b>Objectives</b></a></li>
</ul>

	<table>
		<tr>
		<td  align="left" valign="top">
			<a href="intro.html"><img src="image/jj.jpg"  width="150" height="150"></a><br>
			<a href="intro2.html"><img src="image/j2.jpg"  width="150" height="150"></a><br>
			<a href="intro8.html"><img src="image/j3.jpg" width="150" height="150"></a><br>
			<a href="intro3.html"><img src="image/j4.jpg"  width="150" height="150"></a><br>
			<a href="intro4.html"><img src="image/j5.jpg"  width="150" height="150"></a><br>
			<a href="intro5.html"><img src="image/j6.jpg"  width="150" height="150"></a><br>
			<a href="intro6.html"><img src="image/j7.jpg"  width="150" height="150"></a><br>
			<a href="intro7.html"><img src="image/j8.jpg"  width="150" height="150"></a><br>


		</td>


		<td align="left" valign="top">
		<pre>
			<center><font face="Times New Romance" size="8" color="blue">Access Modifiers or Visibility Controls</font></center>

				<font face="Times New Roman" size="4">

	These are also Called as Access Visibility Controls  means they defined where a method
	and Data Member of class will be used either inside a  class ,outside a class ,in inherited
	class or in main Method They Tells us the Scope of Methods where they would be used Various
	types of Access Modifiers  are as follows:-
	 1) Public Access: - Public Access modifiers Specifies that data Members and Member
		Functions those are declared as public will be visible in entire class in which they
		are defined.  Public Modifier is used when we wants to use the method any where either
		in the class or from outside the class.
	2) Protected Access:- The Methods those are declared as Protected Access modifiers are
		Accessible to Only in the Sub Classes but not in the Main Program , This is the Most
		important Access Modifiers which is used for Making a Data or Member Function as he
		may only be Accessible to a Class which derives it but it doesn’t allows a user to
		Access the data which is declared as outside from Program Means Methods those are
		Declared as Protected are Never be Accessible to Another Class The Protected will
		be Accessible to Only Sub Class and but not in your Main Program.
	 3) Private Access:- The Methods or variables those are declared as private Access
		modifiers are not would be not Accessed outside from the class or in inherited Class
		or the Subclass will not be able to use the Methods those are declared as Private
		they are Visible only in same class where they are declared. By default all the
		Data Members and Member Functions is Private, if we never specifies any Access
		Modifier in front of the Member and Data Members Functions.<br>


	Example
	<a href="W.html">Class Student has private fields as student number and name.The method
	display() in class Student displays as student number and name. Use constructor to
	assign values. Write a java program to set and display values of one student.</a><br>

	Example
	<a href="X.html">Class Employee has protected fields number and name.Class laborer
	has a private field number of ot hours. The class also 	have a public method set()
	which set number, name and ot hours and a 	method show() which displays number
	and name of a laborer. Write a java program to set and display data of a laborer.</a>


</font>


			</td>
			<td align="right" valign="top">
			.<br><br><br><br><br><br>
		<img src="image/png;base649391a5ca185fedfc.png"  width="400" height="350"><br><br><br><br><br><br><br><br><br>

		<img src="image/java-member-access-levels1.png" width="300" height="250">
		</td>

		</tr>


		</table>

	</body>

</html>