수다닷컴

Ex04.JAVA
import java.io.*;
public class Ex04 {
private String name;
private int length;
private int weight;
private BufferedReader in;
public Ex04(){
in = new BufferedReader(new InputStreamReader(System.in));
name = ;
length = 0;
weight = 0;
}

public void setName() throws IOException{
System.out.print(이름 :);
name = in.readLine();
}
public void setLength() throws IOException{
System.out.print(키 :);
length = Integer.parseInt(in.readLine());
}
public void setWeight() throws IOException{
System.out.print(몸무게 :);
weight = Integer.parseInt(in.readLine());
}

public void setName(String name){
this.name = name;
}
public void setLength(int length){
this.length = length;
}
public void setWeight(int weight){
this.weight = weight;
}

public void display(){
System.out.println();
System.out.println(이름 : + name);
System.out.println(키 : + length);
System.out.println(몸무게 : + weight);
System.out.println();
}
}

Ex05.java

import java.io.*;
public class Ex05 {
public static void main(String ar[])throws IOException{
Ex04 s = new Ex04();
s.setName();
s.setLength();
s.setWeight();
s.display();
}

}이렇게 해도 문제는 없던데 책에선 그런식으로 안하고

public getName(){
return name;
}
이런식으로 해주던데 이런식으로 해주는 이유가 뭔가요?

신청하기