The holiday is okay. I wrote 90 lines of Tetris, which is implemented in Java.

 

Import Java. AWT. *; <br/> Import Java. AWT. event. *; <br/> Import javax. swing. *; <br/> public class Terris extends jframe implements runnable, keylistener {<br/> private short isplaying = 0, xoffset = 2, yoffset = 0, blocktype = (short) math. round (math. random () * 6), blockrotation = 0, blockcolor = (short) math. round (math. random () * 5); <br/> private short matrix [] [] = new short [21] [10]; // <br/> private short Block [] [] [] [] = {0, 1, 0, 0}, {0, 1, 0, 0}, {0, 1, 0, 0}, {0, 1, 0, 0 }},/* l */{0, 0, 0}, {1, 1, 1 }, {0, 0, 0, 0}, {0, 0, 0, 0 }},/*-*/{0, 0, 0, 0 }, {1, 1, 0, 0}, {0, 1, 1, 0}, {0, 0, 0},/* z */{0, 0, 0, 0}, {0, 0, 1, 0}, {0, 1, 1, 0}, {0, 1, 0 }}}, /* z | */{0, 0, 0, 0}, {0, 1, 1, 0}, {1, 1, 0 }, {0, 0, 0 }},/* xz */{0, 1, 0, 0}, {0, 1, 1, 0}, {0, 0, 1, 0}, {0, 0, 0, 0 }}}, /* xz | */{0, 0, 0, 0}, {0, 1, 1, 0}, {0, 1, 1 }, {0, 0, 0, 0 }},/** [] */{0, 1, 1, 0}, {0, 1, 0, 0, 0 },{ 0, 1, 0, 0 },{ 0, 0, 0, 0 }},{ 0, 0, 0, 0}, {1, 1, 1, 0}, {0, 0, 1, 0}, {0, 0, 0 }},{ 0, 1, 0, 0}, {0, 1, 0, 0}, {1, 1, 0, 0}, {0, 0, 0, 0 }},{ {1, 0, 0, 0 }, {1, 1, 1, 0}, {0, 0, 0}, {0, 0, 0, 0 }},/* f */{1, 1, 0, 0}, {0, 1, 0}, {0, 1, 0, 0}, {0, 0, 0, 0 }},{ {0, 0, 1, 0}, {1, 1, 1, 0}, {0, 0, 0, 0}, {0, 0, 0, 0 }},{ 0, 1, 0, 0}, {0, 1, 0 }, {0, 1, 1, 0}, {0, 0, 0, 0 }},{ {0, 0, 0}, {1, 1, 1, 0}, {1, 0, 0, 0}, {0, 0, 0 }},/* XF */{0, 1, 0, 0 },{ 1, 1, 1, 0 },{ 0, 0, 0, 0}, {0, 0, 0, 0 }},{ 0, 1, 0, 0}, {0, 1, 1, 0}, {0, 1, 0, 0}, {0, 0, 0, 0 }}, {0, 0, 0}, {1, 1, 0 }, {0, 1, 0, 0}, {0, 0, 0, 0 }},{ {0, 1, 0, 0}, {1, 1, 0, 0 },{ 0, 1, 0, 0}, {0, 0, 0 }}}}; /* T */<br/> private image [] images = {New imageicon ("D:/Java/Eclipse/workspace/Terris/src/img/red.gif "). getimage (), new imageicon ("D:/Java/Eclipse/workspace/Terris/src/img/blue.gif "). getimage (), new imageicon ("D:/Java/Eclipse/workspace/ Terris/src/img/pink.gif ")). getimage (), new imageicon ("D:/Java/Eclipse/workspace/Terris/src/img/bblue.gif ")). getimage (), new imageicon ("D:/Java/Eclipse/workspace/Terris/src/img/orange.gif ")). getimage (), new imageicon ("D:/Java/Eclipse/workspace/Terris/src/img/green.gif ")). getimage (), new imageicon ("D:/Java/Eclipse/workspace/Terris/src/img/red.gif "). getimage () }; <br/> Public Terris () {<br/> setsize (160, 335); <br/> setvisible (true); <br/> createbufferstrategy (2); <br/> setdefaclocloseoperation (jframe. exit_on_close); <br/> addkeylistener (this); <br/>}< br/> Public void paint (Graphics g) {<br/> graphics Tg = This. getbufferstrategy (). getdrawgraphics (); <br/> TG. fillrect (5, 30,150,340); <br/> for (INT I = 0; I <21; I ++) <br/> for (Int J = 0; j <10; j ++) {<br/> If (Matrix [I] [J]! = 0) <br/> TG. drawimage (images [matrix [I] [J], J * 15 + 5, I * 15 + 15, null ); <br/> If (I <4 & J <4 & Block [blocktype] [blockrotation] [I] [J]! = 0) <br/> TG. drawimage (images [blockcolor + 1], (J + xoffset) * 15) + 5, (I + yoffset) * 15) + 15, null ); <br/>}< br/> This. getbufferstrategy (). show (); <br/>}< br/> Public static void main (string [] ARGs) {<br/> New thread (New Terris ()). start (); <br/>}< br/> Public void run () {<br/> while (isplaying = 0) <br/> try {<br/> If (check (0, 0, 0, 1) <br/> yoffset + = 1; <br/> else {<br/> If (yoffset = 0) {<br/> I Splaying = 1; <br/> continue; <br/>}< br/> freezeandnew (); <br/>}< br/> repaint (); <br/> thread. sleep (600); <br/>} catch (interruptedexception e) {<br/>}< br/> private Boolean check (INT left, int right, int up, int down) {<br/> for (INT I = 0; I <4; I ++) <br/> for (Int J = 0; j <4; j ++) <br/> If (xoffset + J-left + right <0 | xoffset + J-left + Right> = 10) & Block [blocktype] [(blockrot Ation + up)> = block [blocktype]. length? 0: (blockrotation + up)] [I] [J]! = 0) | (yoffset + I + down> = 21) & Block [blocktype] [(blockrotation + up)> = block [blocktype]. length? 0: (blockrotation + up)] [I] [J]! = 0) | (Block [blocktype] [(blockrotation + up)> = block [blocktype]. length? 0: (blockrotation + up)] [I] [J]! = 0 & matrix [yoffset + I + down] [xoffset + J-left + right]! = 0) <br/> return false; <br/> return true; <br/>}< br/> private void freezeandnew () {<br/> Boolean [] Clear = new Boolean [4]; <br/> for (INT I = 0; I <4; I ++) {<br/> for (Int J = 0; j <4; j ++) <br/> If (Block [blocktype] [blockrotation] [I] [J]! = 0) <br/> matrix [I + yoffset] [J + xoffset] = (short) (blockcolor + 1 ); <br/> clear [I] = I + yoffset> = matrix. length? False: (Matrix [I + yoffset] [0]! = 0 & matrix [I + yoffset] [1]! = 0 & matrix [I + yoffset] [2]! = 0 & matrix [I + yoffset] [3]! = 0 & matrix [I + yoffset] [4]! = 0 & matrix [I + yoffset] [5]! = 0 & matrix [I + yoffset] [6]! = 0 & matrix [I + yoffset] [7]! = 0 & matrix [I + yoffset] [8]! = 0 & matrix [I + yoffset] [9]! = 0); <br/>}< br/> for (INT I = 0; I <clear. length; I ++) <br/> If (clear [I]) <br/> for (Int J = yoffset + I; j> 0; j --) <br/> matrix [J] = matrix [J-1]; <br/> yoffset = blockrotation = 0; <br/> xoffset = 2; <br/> blocktype = (short) math. round (math. random () * 6); <br/> blockrotation = (short) math. round (math. random () * (Block [blocktype]. length-1); <br/> blockcolor = (short) math. round (math. random () * 5); <br/>}< br/> publi C void keypressed (keyevent e) {// 38-Top 40-bottom 37-left 39-Right <br/> If (E. getkeycode () = 65 | E. getkeycode () = 37) & check (1, 0, 0, 0) & isplaying = 0) {// left <br/> xoffset --; <br/>} else if (E. getkeycode () = 68 | E. getkeycode () = 39) & check (0, 1, 0, 0) & isplaying = 0) {// right <br/> xoffset ++; <br/>} else if (E. getkeycode () = 87 | E. getkeycode () = 38) & check (0, 0, 1, 0) & isplaying = 0) {// up <Br/> blockrotation = (short) (blockrotation + 1)> = block [blocktype]. length? 0: (blockrotation + 1); <br/>} else if (E. getkeycode () = 83 | E. getkeycode () = 40) & check (0, 0, 0, 1) & isplaying = 0) {// down <br/> yoffset + = 1; <br/>} else if (E. getkeycode () = 83 | E. getkeycode () = 40) & isplaying = 0) <br/> freezeandnew (); <br/> repaint (); <br/>}< br/> Public void keyreleased (keyevent arg0) {<br/>}< br/> Public void keytyped (keyevent arg0) {<br/>}< br/> // by: http://wireless.javaeye.com/blog/595321

Reprinted please indicate the source http://wireless.javaeye.com/blog/595321