刚开始学了1周scjp教材写了个俄罗斯方块，去考试有几层把握？

[guoyichao]

代码如下：game.java（前半）

import java.awt.*;
import java.awt.event.*;

class cube {
public final static int w = 20, h = 20;
protected int x, y;
protected Color color;
protected int style_id;
public final static int offset = 60;
public static int [][] buf;
public int [][] style;
public void setColor(Color c) {
color = c;
}
public void drawMain(Graphics g) {
g.setColor(color);
for (int i = 0; i < 4; ++i) {
for (int j = 0; j < 4; ++j) {
if (style[i][j] == 0)
continue;
g.fillRect(x+j*w+offset, y+i*h, w, h);
}
}
}
public void drawNext(Graphics g) {
g.setColor(color);
for (int i = 0; i < 4; ++i) {
for (int j = 0; j < 4; ++j) {
if (style[i][j] == 0)
continue;
g.fillRect(x+j*w, y+i*h, w, h);
}
}
}
public void setStyle(int id) {
style = new int[4][4];
style_id = id;
switch (id) {
case 0:
style[0][0] = 1;
style[0][1] = 1;
style[1][0] = 1;
style[1][1] = 1;
break;
case 1:
style[0][0] = 1;
style[1][0] = 1;
style[2][0] = 1;
style[3][0] = 1;
break;
case 2:
style[0][0] = 1;
style[1][0] = 1;
style[0][1] = 1;
style[0][2] = 1;
break;
case 3:
style[0][0] = 1;
style[1][0] = 1;
style[1][1] = 1;
style[1][2] = 1;
break;
case 4:
style[0][0] = 1;
style[0][1] = 1;
style[0][2] = 1;
style[1][1] = 1;
break;
case 5:
style[0][0] = 1;
style[1][0] = 1;
style[1][1] = 1;
style[2][1] = 1;
break;
case 6:
style[0][1] = 1;
style[1][1] = 1;
style[1][0] = 1;
style[2][0] = 1;
break;
}
}
public int down() {
for (int i =0; i < 4; ++i) {
for (int j = 0; j < 4; ++j) {
if (style[i][j] == 1) {
try {
if (buf[(y+h*(i+1))/h][(x+w*j)/w] == 1)
return -1;
} catch (ArrayIndexOutOfBoundsException e) {
if ((y+h*(i+1))/h >= 14)
return -1;
else {
if ((x+w*j)/w < 0)
x+=w;
else
x-=w;
}
}
}
}
}
return y+=h;
}
public int up() {
if (y-1 >= 0)
return y-=h;
return -1;
}
public int left() {
for (int j = 3; j >= 0; --j) {
for (int i = 0; i < 4; ++i) {
if (style[i][j] == 1) {
try {
if (buf[(y+h*i)/h][(x+w*(j-1))/w] == 1)
return -1;
} catch (ArrayIndexOutOfBoundsException e) {
return -1;
}
}
}
}
return x-=w;
}
public int right() {
for (int j = 0; j < 4; ++j) {
for (int i = 0; i < 4; ++i) {
if (style[i][j] == 1) {
try {
if (buf[(y+h*i)/h][(x+w*(j+1))/w] == 1)
return -1;
} catch (ArrayIndexOutOfBoundsException e) {
return -1;
}
}
}
}
return x+=w;
}
public void setBuf() {
int left, top;
left = x/w;
top = y/h;
for (int i = 0; i < 4; ++i) {
for (int j = 0; j < 4; ++j) {
if (style[i][j] == 1) {
try {
buf[top+i][left+j]=style[i][j];
} catch (ArrayIndexOutOfBoundsException e) {
}
}
}
}
}
public boolean reset() {
if (x == 0 && y == 0)
return false;
x = 0;
y = 0;
return true;
}
public void rotate() {
int tmp[][];
int cw = 4;
int left, top;
left = x/w;
top = y/h;

tmp = style;
style = new int[4][4];

for (int i = 0; i < cw; ++i)
for (int j = 0; j < cw; ++j)
style[cw-1-j][i] = tmp[i][j];

for (int i = 0; i < 4; ++i) {
for (int j = 0; j < 4; ++j) {
if (style[i][j] == 1) {
try {
if (buf[top+i][left+j] == 1)
style = tmp;
} catch (ArrayIndexOutOfBoundsException e) {
style = tmp;
}
}
}
}
}
{
x = 0;
y = 0;
style = new int[4][4];
buf = new int[14][10];
}
}

[guoyichao]

代码如下：game.java（后半）

public class game extends Frame {
protected int score;
protected int state;
protected int input;
class buffer extends Panel implements Runnable{
cube cube;
cube nextcube;
protected int [][] inbuf;
private boolean drawnextable;
{
cube = new cube();
nextcube = new cube();
Color background = new Color(0, 0, 0);
inbuf = new int [14][10];
setBackground(background);
cube.buf = inbuf;
cube.setStyle((int)(Math.random()*10)%7);
nextcube.setStyle((int)(Math.random()*10)%7);
addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent key) {
input = key.getKeyCode();
}
});
}
public void paint(Graphics g) {
if (state == 0) {
g.setColor(new Color(255, 0, 0));
g.drawString("Game Over", 100, 100);
g.setColor(new Color(255, 255, 0));
g.drawString("After 3s will start a new game...", 50, 150);
return;
}
init(g);
drawNext(g);
drawMain(g);
}
protected void init(Graphics g) {
Color border = new Color(255, 255, 255);
cube.buf = inbuf;
g.setColor(border);
g.drawLine(59, 0, 59, 300);
g.drawLine(59, 280, 260, 280);
initMain(g);
drawScore(g);
}
protected void initMain(Graphics g) {
Color b = Color.gray;
Color c = Color.white;
for (int i = 0; i < 14; ++i) {
for (int j = 0; j < 10; ++j) {
if (inbuf[i][j] == 0)
continue;
g.setColor(c);
g.fillRect(j*cube.w+cube.offset, i*cube.h, cube.w, cube.h);
g.setColor(b);
g.drawRect(j*cube.w+cube.offset, i*cube.h, cube.w, cube.h);
}
}
}
protected void drawNext(Graphics g) {
nextcube.setColor(new Color(0, 255, 255));
nextcube.drawNext(g);
}
protected void drawMain(Graphics g) {
cube.setColor(new Color(0, 255, 0));
cube.drawMain(g);
}
protected void drawScore(Graphics g) {
g.setColor(new Color(255, 255, 255));
g.drawString("Score : "+score, 70, 300);
}
protected void clearCube() {
boolean is_need_clear = true;
int ts = 0;
for (int i = 13; i >= 0; --i) {
for (int j = 0; j < 10; j++)
if (inbuf[i][j] == 0)
is_need_clear = false;
if (is_need_clear) {
for (int k = i; k >= 0; --k) {
for (int j = 0; j < 10; j++) {
try {
inbuf[k][j] = inbuf[k-1][j];
} catch (ArrayIndexOutOfBoundsException e) {
inbuf[k][j] = 0;
}
}
}
i = 14;
++ts;
}
is_need_clear = true;
}
score += Math.pow(20, ts);
}
protected void over() {
score = 0;
state = 0;
inbuf = new int[14][10];
cube.buf = inbuf;
nextcube.setStyle((int)(Math.random()*10)%7);
}
protected void interactive() {
switch (input) {
case KeyEvent.VK_LEFT :
cube.left();
break;
case KeyEvent.VK_RIGHT:
cube.right();
break;
case KeyEvent.VK_UP:
cube.rotate();
break;
case KeyEvent.VK_DOWN:
if (cube.down() == -1) {
cube.setBuf();
clearCube();
if (cube.reset() == false)
over();
cube.style = nextcube.style;
nextcube.setStyle((int)(Math.random()*10)%7);
}
default :
if (cube.down() == -1) {
cube.setBuf();
clearCube();
if (cube.reset() == false)
over();
cube.style = nextcube.style;
nextcube.setStyle((int)(Math.random()*10)%7);
}
break;
}
input = KeyEvent.VK_UNDEFINED;
}
public synchronized void run() {
while (true) {
try {
wait(300);
} catch (InterruptedException e) {}
interactive();
repaint();
if (state == 0) {
try {
wait(3000);
} catch (InterruptedException e) {}
state = 1;
}
}
}
}
buffer buf;
{
buf = new buffer();
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
setSize(280,340);
score = 0;
state = 1;
input = KeyEvent.VK_UNDEFINED;
add(buf);
}
public static void main(String[] args) {
game myFrame = new game();
myFrame.setVisible(true);
(new Thread(myFrame.buf)).start();
}
}

[sunni]

你的c++底子一定不错,如果e文也可以的话,考试一定没问题.(注意io流与线程这类题目往往很长)

[hht]

不一定行，考试要求你的知识一定要全面，你作模拟题如果达到80分就比较有把握了。实际经验对这个考试不太重要，呵呵