/** backup 2023.08.19 15:04 import java.awt.*;// TODO Auto-generated catch block import java.awt.event.*; import javax.swing.*; import java.math.*; class Player extends JLabel implements Runnable{ int x,y; int mx,my; boolean w=false,a=false,s=false,d=false; public Player(String string) { super(string); setBackground(Color.BLUE); setOpaque(true); setForeground(Color.RED); setSize(30,30); setLocation(0, 0); addKeyListener(new pke()); Thread th=new Thread(this); th.start(); setFocusable(true); requestFocus(); } public void run() { if(w&&my>15)my-=2; if(a&&mx>15)my-=2; if(s&&my<15)my+=2; if(d&&mx<15)my+=2; if(mx>0)mx--; if(mx<0)mx++; if(my>0)my--; if(my<0)my++; x+=mx; y+=my; (x,y); repaint(); try { Thread.sleep(1000); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } class pke extends KeyAdapter{ public void keyPressed(KeyEvent e) { switch(e.getKeyChar()) { case'W':w=true;break; case'A':a=true;break; case'S':s=true;break; case'D':d=true;break; } } public void keyReleased(KeyEvent e) { switch(e.getKeyChar()) { case'W':w=false;break; case'A':a=false;break; case'S':s=false;break; case'D':d=false;break; } } } } class Monster extends JLabel { int x=570,y=400; public Monster() { super(" !!!"); setBackground(Color.red); setOpaque(true); setForeground(Color.blue); setSize(30,30); setLocation(x-16, y-39); } } public class Main extends JFrame{ Player pl=new Player(" @"); Monster m=new Monster(); Main(){ setVisible(true); setSize(600,430); Container c=getContentPane(); c.setLayout(null); c.add(pl); c.add(m); } public static void main(String[] args) { new Main(); } } */ /////////////////////////////////////////////////////////////////////////// //teacher ver. import java.awt.*;// TODO Auto-generated catch block import java.awt.event.*; import javax.swing.*; import java.math.*; class Player implements Runnable{ static JLabel p_la; Container c; int x,y; int mx,my; boolean w=false,a=false,s=false,d=false; public Player(JLabel p_la, Container c) { this.p_la = p_la; this.c = c; p_la.setBackground(Color.BLUE); p_la.setOpaque(true); p_la.setForeground(Color.RED); p_la.setSize(30,30); p_la.setLocation(0, 0); c.addKeyListener(new pke()); c.setFocusable(true); c.requestFocus(); System.out.println("!!thread!!"); Thread th=new Thread(this); th.start(); } public static int getx() { return p_la.getLocation().x; } public static int gety() { return p_la.getLocation().y; } public void run() { System.out.println("thread start!"); while(true) { if(w&&my>-15)my-=2; if(a&&mx>-15)mx-=2; if(s&&my<15)my+=2; if(d&&mx<15)mx+=2; if(mx>0)mx--; if(mx<0)mx++; if(my>0)my--; if(my<0)my++; x+=mx; y+=my; p_la.setLocation(x, y); c.repaint(); try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } class pke extends KeyAdapter{ public void keyPressed(KeyEvent e) { switch(e.getKeyChar()) { case'W':w=true;break; case'A':a=true;break; case'S':s=true;break; case'D':d=true;break; } } public void keyReleased(KeyEvent e) { switch(e.getKeyChar()) { case'W':w=false;break; case'A':a=false;break; case'S':s=false;break; case'D':d=false;break; } } } } class Monster extends JLabel implements Runnable{ JLabel m_la; int x=570,y=400; int mx=0,my=0; public Monster(JLabel la) { m_la=la; m_la.setBackground(Color.red); m_la.setOpaque(true); m_la.setForeground(Color.blue); m_la.setSize(30,30); m_la.setLocation(x, y); } public void run() { while(true) { int px = Player.getx(); int py = Player.gety(); mx=((px-x)*-1)/20+5; mx=((px-x)*-1)/20+5; x+=mx;y+=my; m_la.setLocation(x, y); try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } public class Main extends JFrame{ Main(){ setVisible(true); setSize(600,430); Container c=getContentPane(); JLabel p_la = new JLabel(" @"); Player pl=new Player(p_la, c); JLabel m_la = new JLabel(" !!!"); Monster m=new Monster(m_la); c.setLayout(null); c.add(p_la); c.add(m); } public static void main(String[] args) { new Main(); } }

#include <stdio.h> typedef struct _node{ int data; struct _node* next; }node; node* make_node(){ node* a = (node*)malloc(sizeof(node)); a->data=10; a->next=NULL; return a; } void add_last(node* head, int data){ } int main() { //LIST 생성 node* head = NULL; node* tail = NULL; //첫 노드 추가 (함수로) node* a = make_node(); head=a; tail=a; // 두번째 노드 추가 (함수로) node* b = make_node(); tail->next=b; tail=b; // 리스트 탐색 (조회) node* cur=head; while(cur!=NULL){ printf("%d\n",cur->data); cur=cur->next; } }

// 명령의 집합 //함수 포인터 구조체 /* #include <stdio.h> int n=5; //전역변수 global variable int arr[6]={7,8,9,10,11,12}; int view(void) { int i; //지역변수 local variable printf("arr : "); for(i=1;i<=n;i++) { printf("%d ",arr[i]); } printf("\n"); return 99; } int main() { int a = view(); //printf("%d",view()); return 0; } */ #include <stdio.h> //함수원형 //리턴타입 함수이름 (매개변수) void star(int a) { for(int i=0;i<a;i++) { printf("*"); } } int main() { int n; scanf("%d",&n); star(n); return 0; }

//포인터 / 포인터와 배열 / 메모리동적할당 코드 #include <stdio.h> void f(int* p) { printf("%d",*p); } void arrp(char* ap,int an) { for(int i=0;i<an;i++) { printf("%c ",ap[i]); } printf("\n"); for(int i=0;i<an;i++) { printf("%c ",*(ap+i)); } printf("\n"); for(int i=0;i<an;i++) { printf("%d ",ap+i); } } int main() { int n=10; //char str[100]; //char* str = (char*)malloc(n*sizeof(char)); char* arr = (char*)malloc(n*sizeof(char)); //int arr[700]; for(int i=0;i<n;i++) { arr[i]=i+'a'; } arrp(arr,n); return 0; }