this 和 super

4int b = 12;

5} 6}

a ݒᰁտࣁӷӻ {} ֢ አऒٖํප҅ᘒb ݒᰁጱ꧊ݝᚆࣁਙᛔ૩ጱ {} ٖํප̶

ᡱᆐਂࣁ֢አऒ҅֕ฎӧ꧋ᦜᬯ໏ٟ

1{ 2int x = 11;

3{ 4int x = 12;

5} 6}

ᬯᐿٟဩࣁC/C++ Ӿฎݢզጱ҅֕ฎࣁJava Ӿӧ꧋ᦜᬯ໏ٟ҅ࢩԅJava ᦡᦇᘏᦊԅᬯ໏ٟտ੕ᛘᑕ ଧႰԤ̶

this ޾ super

this ޾ super ᮷ฎ Java ӾጱىᲫਁ

this ᤒᐏጱ୮ڹ੒᨝҅this ݢզ᧣አොဩ̵᧣አં௔޾೰ݻ੒᨝๜᫝̶this ࣁ Java ӾጱֵአӞᛱํӣ ᐿғ೰ݻ୮ڹ੒᨝

1public class Apple { 2

3int i = 0;

4 5Apple eatApple(){

6i++;

7return this;

8} 9

10public static void main(String[] args) { 11Apple apple = new Apple();

12apple.eatApple().eatApple();

13} 14}

4 5public Apple(int num){

6this.num = num;

7} 8

this ᬮݢզ޾຅᭜ڍහӞֵ᩸አ҅꧌୮ӞӻقੴىᲫਁጱපຎ

1public class Apple { 2

3private int num;

4private String color;

5 6public Apple(int num){

7this(num,"ᕁᜋ");

8} 9

10public Apple(String color){ 11this(1,color);

12} 13

14public Apple(int num, String color) { 15this.num = num;

16this.color = color;

17} 18

19}

֦տݎሿӤᶎᬯྦྷդᎱֵአጱӧฎthis, ᘒฎ this(݇හ) ̶ਙፘ୮ԭ᧣አԧٌ՜຅᭜ොဩ҅ᆐݸփ᭓ ݇හᬰ̶݄ᬯ᯾ဳ఺Ӟᅩғthis() ஠ᶳනࣁ຅᭜ොဩጱᒫӞᤈ҅ڞވᖫᦲӧ᭗ᬦ

಩֦ইຎthis ቘᥴԅ೰ݻᛔ᫝ጱӞӻ୚አ҅ᮎԍsuper ੪ฎ೰ݻᆿᔄጱӞӻ୚አ̶super ޾Ძਁىthis አֵզݢ֦Ӟ໏҅super.੒᨝ ๶୚አᆿᔄጱ౮ާ҅ইӥ

1public class Fruit { 2

3int num;

4String color;

5 6public void eat(){

7System.out.println("eat Fruit");

8} 9}

10 11public class Apple extends Fruit{

12 13@Override

14public void eat() { 15super.num = 10;

16System.out.println("eat " + num + " Apple");

17} 18

19}