Java

Tue, 09 Oct 2012 00:11:00 +0000

Attributes and Methods

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public class TestClass {
    private final String param4 = "4";
    private final int param5 = 5;
    public String test(String param1, int param2, int param3) {
      return param1 + (param2 + param3 + param4);
    }
    
    public static void main(String args[]) {
        TestClass testClass = new TestClass();
        String output = testClass.test("test", 1, 2);
        System.out.println(output);
    }
}

Function => param1, param2, param3 -> Parameters (Placeholder, formal parameters)
Method => param1, param2, param3 -> Arguments (Placeholder, formal parameters)
param4, param5 -> Attributes, Fields (Class Attributes)
testClass.test("test", 1, 2); “test”, 1, 2 -> Arguments (Actual value, actual parameters) It returns test345.

Modifiers

Access Modifiers - controls the access level.
Non-Access Modifiers - do not control access level, but provides other functionality.

Access Modifiers

For classes, you can use either public or default:

Object Oriented Programming on ARI Systems

Java

Attributes and Methods

Modifiers

Access Modifiers