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TurkuBasicOOPinJava / Week 6: Methods of OO Programming

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reusable method for SUPERCLASS n SUBCLASSES, ArrayList, SUPERCLASS METHOD

8e7d332 verified 4 months ago

01A. Static members [= CLASS MEMBER, not object member]

5.13 kB

public static dtype method1(param1) {...} 4 months ago
01B. Class StringHelper

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public static int method1(dtype param1) 4 months ago
02. Class SecretAgent

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if (staticMethod2(param1)) {...} 4 months ago
03A. Class variables = STATIC VARIABLES

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public static dtype STATICVARIABLEINCAPS = <value>; 4 months ago
03B. Nordic countries as class variables

728 Bytes

public static String FINLAND = "FI"; 4 months ago
04. Fish within permitted limits

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this.attribute1 >= Class2.PUBLICSTATICATTRIBUTE2 4 months ago
05A. Interfaces+++

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interface INTERFACE1 {dtype method1();} 4 months ago
05B. Write an interface class Calculator

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void add(int number); double getResult(); 4 months ago
06. The Calculator implements an interface

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@Override public void add(int number) {this.result += number;} 4 months ago
07A. Interface 'Comparable' [compareTo method]+++

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int/double, str (alphabetical) 4 months ago
07B. Determine the Longest Route

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@Override public int compareTo(Route other) 4 months ago
08. Comparable Point

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condition compares using double, then return int 4 months ago
09 Polymorphism+++

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reusable method for SUPERCLASS n SUBCLASSES, ArrayList, SUPERCLASS METHOD 4 months ago