{"id":10782,"date":"2024-11-27T10:01:39","date_gmt":"2024-11-27T02:01:39","guid":{"rendered":"https:\/\/www.cybermedian.com\/vn\/modeling-looping-and-iteration-logic-using-uml-sequence-diagrams\/"},"modified":"2026-04-20T17:04:50","modified_gmt":"2026-04-20T09:04:50","slug":"modeling-looping-and-iteration-logic-using-uml-sequence-diagrams","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/vn\/modeling-looping-and-iteration-logic-using-uml-sequence-diagrams\/","title":{"rendered":"M\u00f4 h\u00ecnh h\u00f3a logic v\u00f2ng l\u1eb7p v\u00e0 l\u1eb7p l\u1ea1i b\u1eb1ng s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML"},"content":{"rendered":"<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/a> trong Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (<a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-practical-guide\/\">UML<\/a>) l\u00e0 nh\u1eefng c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 minh h\u1ecda h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch hi\u1ec3n th\u1ecb c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u00e1c theo th\u1eddi gian. M\u1ed9t trong nh\u1eefng kh\u00eda c\u1ea1nh quan tr\u1ecdng khi m\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c ph\u1ee9c t\u1ea1p l\u00e0 bi\u1ec3u di\u1ec5n logic v\u00f2ng l\u1eb7p v\u00e0 l\u1eb7p l\u1ea1i. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n c\u00e1ch m\u00f4 h\u00ecnh h\u00f3a logic v\u00f2ng l\u1eb7p v\u00e0 l\u1eb7p l\u1ea1i b\u1eb1ng <a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML<\/a>, v\u1edbi tr\u1ecdng t\u00e2m v\u00e0o v\u00ed d\u1ee5 \u0111\u01b0\u1ee3c cung c\u1ea5p. Ngo\u00e0i ra, ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u <a href=\"http:\/\/online.visual-paradigm.com\">Visual Paradigm<\/a> l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 t\u1ed1t nh\u1ea5t d\u00e0nh cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m \u0111\u1ec3 t\u1ea1o v\u00e0 qu\u1ea3n l\u00fd s\u01a1 \u0111\u1ed3 UML.<\/p>\n<h2>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 trong t\u1ea7m nh\u00ecn t\u1ed5ng quan<\/h2>\n<p><img alt=\"Sequence Diagram, UML Diagrams Example: Object Creation - Visual Paradigm Community Circle\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2024\/11\/Sequence-Diagram-Add-Course.png\"\/><\/p>\n<p>V\u00ed d\u1ee5 \u0111\u01b0\u1ee3c cung c\u1ea5p minh h\u1ecda quy tr\u00ecnh m\u1ed9t nh\u00e2n vi\u00ean \u0111\u0103ng k\u00fd th\u00eam m\u1ed9t kh\u00f3a h\u1ecdc m\u1edbi v\u00e0o h\u1ec7 th\u1ed1ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 gi\u1ea3i th\u00edch chi ti\u1ebft v\u1ec1 k\u00fd hi\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng:<\/p>\n<h3>1. Ng\u01b0\u1eddi tham gia v\u00e0 \u0111\u01b0\u1eddng \u0111\u1eddi<\/h3>\n<ul>\n<li><strong>Ng\u01b0\u1eddi tham gia (Nh\u00e2n vi\u00ean \u0111\u0103ng k\u00fd)<\/strong>: \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng h\u00ecnh ng\u01b0\u1eddi d\u1ea1ng que, ng\u01b0\u1eddi tham gia l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i (trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 m\u1ed9t con ng\u01b0\u1eddi) t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong>\u0110\u01b0\u1eddng \u0111\u1eddi (Nh\u00e2n vi\u00ean \u0111\u0103ng k\u00fd v\u00e0 Qu\u1ea3n l\u00fd \u0111\u0103ng k\u00fd)<\/strong>: C\u00e1c \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t \u0111\u1ee9ng bi\u1ec3u th\u1ecb s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c ng\u01b0\u1eddi tham gia theo th\u1eddi gian. \u0110\u01b0\u1eddng \u0111\u1eddi cho <code class=\"\">Nh\u00e2n vi\u00ean \u0111\u0103ng k\u00fd<\/code> b\u1eaft \u0111\u1ea7u t\u1eeb tr\u00ean c\u00f9ng v\u00e0 k\u00e9o d\u00e0i xu\u1ed1ng d\u01b0\u1edbi, cho th\u1ea5y kho\u1ea3ng th\u1eddi gian m\u00e0 nh\u00e2n vi\u00ean \u0111\u0103ng k\u00fd tham gia v\u00e0o t\u01b0\u01a1ng t\u00e1c.<\/li>\n<\/ul>\n<h3>2. Tin nh\u1eafn<\/h3>\n<ul>\n<li><strong>Tin nh\u1eafn (addCourse)<\/strong>: C\u00e1c m\u0169i t\u00ean ngang bi\u1ec3u di\u1ec5n s\u1ef1 giao ti\u1ebfp gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. Trong v\u00ed d\u1ee5 n\u00e0y:\n<ul>\n<li><strong>1. addCourse(title: String = \u201cUML\u201d)<\/strong>: Ng\u01b0\u1eddi <code class=\"\">Nh\u00e2n vi\u00ean \u0111\u0103ng k\u00fd<\/code> g\u1eedi m\u1ed9t tin nh\u1eafn \u0111\u1ebfn <code class=\"\">Qu\u1ea3n l\u00fd \u0111\u0103ng k\u00fd<\/code> \u0111\u1ec3 th\u00eam m\u1ed9t kh\u00f3a h\u1ecdc m\u1edbi mang t\u00ean \u201cUML\u201d. \u0110\u00e2y l\u00e0 m\u1ed9t tin nh\u1eafn \u0111\u1ed3ng b\u1ed9, \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng \u0111\u1ea7u m\u0169i t\u00ean li\u1ec1n.<\/li>\n<li><strong>1.1: uml : Course<\/strong>: Ng\u01b0\u1eddi <code class=\"\">RegistrationManager<\/code>\u00a0g\u1eedi m\u1ed9t tin nh\u1eafn t\u1ea1o \u0111\u1ebfn\u00a0<code class=\"\">Course<\/code>\u00a0\u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ec3 kh\u1edfi t\u1ea1o m\u1ed9t kh\u00f3a h\u1ecdc m\u1edbi c\u00f3 t\u00ean l\u00e0 \u201cUML\u201d.<\/li>\n<li><strong>1.2<\/strong>: Tin nh\u1eafn tr\u1ea3 v\u1ec1 t\u1eeb\u00a0<code class=\"\">RegistrationManager<\/code>\u00a0tr\u1edf l\u1ea1i cho\u00a0<code class=\"\">Registrar<\/code>, cho bi\u1ebft kh\u00f3a h\u1ecdc \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam th\u00e0nh c\u00f4ng. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t m\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n ch\u1ec9 v\u1ec1 ph\u00eda ng\u01b0\u1eddi g\u1ecdi.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>3. K\u00edch ho\u1ea1t (T\u1eadp trung v\u00e0o \u0111i\u1ec1u khi\u1ec3n)<\/h3>\n<ul>\n<li><strong>Thanh k\u00edch ho\u1ea1t<\/strong>: Nh\u1eefng h\u00ecnh ch\u1eef nh\u1eadt m\u1ecfng tr\u00ean c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi th\u1ec3 hi\u1ec7n kho\u1ea3ng th\u1eddi gian m\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang th\u1ef1c hi\u1ec7n m\u1ed9t h\u00e0nh \u0111\u1ed9ng. Trong v\u00ed d\u1ee5 n\u00e0y:\n<ul>\n<li>Thanh k\u00edch ho\u1ea1t tr\u00ean \u0111\u01b0\u1eddng \u0111\u1eddi c\u1ee7a\u00a0<code class=\"\">RegistrationManager<\/code>\u00a0th\u1ec3 hi\u1ec7n kho\u1ea3ng th\u1eddi gian m\u00e0 n\u00f3 \u0111ang x\u1eed l\u00fd y\u00eau c\u1ea7u\u00a0<code class=\"\">addCourse<\/code>\u00a0y\u00eau c\u1ea7u.<\/li>\n<li>Thanh k\u00edch ho\u1ea1t tr\u00ean \u0111\u01b0\u1eddng \u0111\u1eddi c\u1ee7a\u00a0<code class=\"\">Course<\/code>\u00a0lifeline th\u1ec3 hi\u1ec7n kho\u1ea3ng th\u1eddi gian m\u00e0 kh\u00f3a h\u1ecdc m\u1edbi \u0111ang \u0111\u01b0\u1ee3c t\u1ea1o.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>4. Ghi ch\u00fa<\/h3>\n<ul>\n<li><strong>Ghi ch\u00fa<\/strong>: \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00e1c h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 g\u00f3c cong, ghi ch\u00fa cung c\u1ea5p th\u00eam th\u00f4ng tin ho\u1eb7c nh\u1eadn x\u00e9t v\u1ec1 s\u01a1 \u0111\u1ed3. Trong v\u00ed d\u1ee5 n\u00e0y:\n<ul>\n<li><strong>Ng\u01b0\u1eddi \u0111\u0103ng k\u00fd ch\u1ecdn \u201cth\u00eam kh\u00f3a h\u1ecdc\u201d<\/strong>: Ghi ch\u00fa n\u00e0y gi\u1ea3i th\u00edch h\u00e0nh \u0111\u1ed9ng m\u00e0 ng\u01b0\u1eddi \u0111\u0103ng k\u00fd th\u1ef1c hi\u1ec7n.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng t\u1ea1o kh\u00f3a h\u1ecdc m\u1edbi<\/strong>: Ghi ch\u00fa n\u00e0y gi\u1ea3i th\u00edch k\u1ebft qu\u1ea3 c\u1ee7a t\u01b0\u01a1ng t\u00e1c.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>5. Tin nh\u1eafn t\u1ea1o<\/h3>\n<ul>\n<li><strong>Tin nh\u1eafn t\u1ea1o<\/strong>: M\u1ed9t lo\u1ea1i tin nh\u1eafn c\u1ee5 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c t\u1ea1o ra m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng m\u1edbi. Trong v\u00ed d\u1ee5 n\u00e0y:\n<ul>\n<li><strong>1.1: uml : Course<\/strong>: The\u00a0<code class=\"\">RegistrationManager<\/code>\u00a0g\u1eedi m\u1ed9t tin nh\u1eafn t\u1ea1o \u0111\u1ec3 kh\u1edfi t\u1ea1o m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng m\u1edbi\u00a0<code class=\"\">Course<\/code>\u00a0\u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 t\u00ean l\u00e0 \u201cUML\u201d.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>6. Tin nh\u1eafn tr\u1ea3 v\u1ec1<\/h3>\n<ul>\n<li><strong>Tin nh\u1eafn tr\u1ea3 v\u1ec1<\/strong>: M\u1ed9t tin nh\u1eafn cho bi\u1ebft vi\u1ec7c tr\u1ea3 l\u1ea1i quy\u1ec1n \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c d\u1eef li\u1ec7u v\u1ec1 ng\u01b0\u1eddi g\u1ecdi. Trong v\u00ed d\u1ee5 n\u00e0y:\n<ul>\n<li><strong>1.2<\/strong>: Tin nh\u1eafn tr\u1ea3 v\u1ec1 t\u1eeb\u00a0<code class=\"\">RegistrationManager<\/code>\u00a0tr\u1edf l\u1ea1i cho\u00a0<code class=\"\">Registrar<\/code>, cho bi\u1ebft kh\u00f3a h\u1ecdc \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam th\u00e0nh c\u00f4ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>C\u00e1c b\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ecdc s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h2>\n<ol>\n<li><strong>X\u00e1c \u0111\u1ecbnh c\u00e1c t\u00e1c nh\u00e2n v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng<\/strong>: B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00e1c nh\u00e2n (<code class=\"\">Registrar<\/code>) v\u00e0 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng (<code class=\"\">RegistrationManager<\/code>,\u00a0<code class=\"\">Course<\/code>) tham gia v\u00e0o t\u01b0\u01a1ng t\u00e1c.<\/li>\n<li><strong>Theo d\u00f5i c\u00e1c tin nh\u1eafn<\/strong>: Theo d\u00f5i tr\u00ecnh t\u1ef1 c\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c trao \u0111\u1ed5i gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. Trong v\u00ed d\u1ee5 n\u00e0y,\u00a0<code class=\"\">Registrar<\/code>\u00a0g\u1eedi m\u1ed9t tin nh\u1eafn\u00a0<code class=\"\">addCourse<\/code>\u00a0tin nh\u1eafn \u0111\u1ebfn\u00a0<code class=\"\">Qu\u1ea3n l\u00fd \u0111\u0103ng k\u00fd<\/code>, sau \u0111\u00f3 t\u1ea1o m\u1ed9t m\u1edbi\u00a0<code class=\"\">Kh\u00f3a h\u1ecdc<\/code>\u00a0\u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 tr\u1ea3 v\u1ec1 x\u00e1c nh\u1eadn.<\/li>\n<li><strong>Hi\u1ec3u c\u00e1c thanh k\u00edch ho\u1ea1t<\/strong>: Quan s\u00e1t c\u00e1c thanh k\u00edch ho\u1ea1t \u0111\u1ec3 hi\u1ec3u c\u00e1c kho\u1ea3ng th\u1eddi gian m\u00e0 m\u1ed7i \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li><strong>\u0110\u1ecdc c\u00e1c ghi ch\u00fa<\/strong>: Tham kh\u1ea3o c\u00e1c ghi ch\u00fa \u0111\u1ec3 c\u00f3 th\u00eam b\u1ed1i c\u1ea3nh v\u00e0 gi\u1ea3i th\u00edch v\u1ec1 c\u00e1c t\u01b0\u01a1ng t\u00e1c.<\/li>\n<\/ol>\n<h2>Hi\u1ec3u v\u1ec1 v\u00f2ng l\u1eb7p v\u00e0 l\u1eb7p l\u1ea1i trong s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h2>\n<h3>C\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh<\/h3>\n<ol>\n<li><strong>D\u00e2y s\u1ed1ng<\/strong>: \u0110\u1ea1i di\u1ec7n cho m\u1ed9t th\u00e0nh vi\u00ean ri\u00eang l\u1ebb trong t\u01b0\u01a1ng t\u00e1c, \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng \u0111\u1ee9t \u0111o\u1ea1n th\u1eb3ng \u0111\u1ee9ng.<\/li>\n<li><strong>Tin nh\u1eafn<\/strong>: \u0110\u1ea1i di\u1ec7n cho s\u1ef1 giao ti\u1ebfp gi\u1eefa c\u00e1c d\u00e2y s\u1ed1ng, \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00e1c m\u0169i t\u00ean ngang.<\/li>\n<li><strong>K\u00edch ho\u1ea1t<\/strong>: \u0110\u1ea1i di\u1ec7n cho kho\u1ea3ng th\u1eddi gian m\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang th\u1ef1c hi\u1ec7n m\u1ed9t h\u00e0nh \u0111\u1ed9ng, \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt m\u1ecfng tr\u00ean d\u00e2y s\u1ed1ng.<\/li>\n<li><strong>Ph\u1ea7n k\u1ebft h\u1ee3p v\u00f2ng l\u1eb7p<\/strong>: \u0110\u1ea1i di\u1ec7n cho m\u1ed9t v\u00f2ng l\u1eb7p ho\u1eb7c l\u1eb7p l\u1ea1i, \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi t\u1eeb kh\u00f3a\u00a0<code class=\"\">v\u00f2ng l\u1eb7p<\/code>\u00a0v\u00e0 m\u1ed9t \u0111i\u1ec1u ki\u1ec7n.<\/li>\n<li><strong>Ph\u1ea7n k\u1ebft h\u1ee3p d\u1eebng<\/strong>: \u0110\u1ea1i di\u1ec7n cho m\u1ed9t \u0111i\u1ec1u ki\u1ec7n d\u1eebng b\u00ean trong m\u1ed9t v\u00f2ng l\u1eb7p, \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi t\u1eeb kh\u00f3a\u00a0<code class=\"\">d\u1eebng<\/code>\u00a0v\u00e0 m\u1ed9t \u0111i\u1ec1u ki\u1ec7n.<\/li>\n<li><strong>Tin nh\u1eafn t\u1ef1 th\u00e2n<\/strong>: \u0110\u1ea1i di\u1ec7n cho m\u1ed9t tin nh\u1eafn \u0111\u01b0\u1ee3c g\u1eedi t\u1eeb m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ebfn ch\u00ednh n\u00f3, \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t m\u0169i t\u00ean quay l\u1ea1i c\u00f9ng m\u1ed9t d\u00e2y s\u1ed1ng.<\/li>\n<\/ol>\n<h3>Gi\u1ea3i th\u00edch s\u01a1 \u0111\u1ed3 v\u00ed d\u1ee5<\/h3>\n<p>V\u00ed d\u1ee5 \u0111\u01b0\u1ee3c cung c\u1ea5p minh h\u1ecda m\u1ed9t c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u1ed9t kho l\u01b0u tr\u1eef \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c m\u1ee5c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ph\u1ea7n ph\u00e2n t\u00edch:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/mistralaichatupprodswe.blob.core.windows.net\/chat-images\/d4\/79\/aa\/d479aa38-7aa0-4834-85e2-323aad019936\/6cccb977-0169-4fee-bfe1-3315744262c7\/7f281885-7733-4885-8918-1583bc43e94c?sv=2024-11-04&amp;st=2024-11-27T01%3A55%3A15Z&amp;se=2024-11-27T02%3A55%3A15Z&amp;sr=b&amp;sp=rade&amp;sig=jMXLHITVCEVGA9fbU%2FUPqyvaLs23Vsez59IcaOCIa9U%3D\"\/><\/p>\n<ol>\n<li><strong>D\u00e2y s\u1ed1ng<\/strong>:\n<ul>\n<li><strong>Motor t\u00ecm ki\u1ebfm<\/strong><\/li>\n<li><strong>Kho l\u01b0u tr\u1eef<\/strong><\/li>\n<\/ul>\n<\/li>\n<li><strong>Tin nh\u1eafn<\/strong>:\n<ul>\n<li><strong>1. getNext()<\/strong>:\u00a0<code class=\"\">Motor t\u00ecm ki\u1ebfm<\/code>\u00a0g\u1ecdi\u00a0<code class=\"\">getNext()<\/code>\u00a0tr\u00ean\u00a0<code class=\"\">Kho l\u01b0u tr\u1eef<\/code>\u00a0\u0111\u1ec3 l\u1ea5y m\u1ee5c ti\u1ebfp theo.<\/li>\n<li><strong>2. test(item)<\/strong>:\u00a0<code class=\"\">Motor t\u00ecm ki\u1ebfm<\/code>\u00a0ki\u1ec3m tra m\u1ee5c n\u00e0y.<\/li>\n<li><strong>3. process(item)<\/strong>:\u00a0<code class=\"\">Motor t\u00ecm ki\u1ebfm<\/code>\u00a0x\u1eed l\u00fd m\u1ee5c n\u1ebfu \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m tra \u0111\u01b0\u1ee3c th\u1ecfa m\u00e3n.<\/li>\n<\/ul>\n<\/li>\n<li><strong>M\u1ea3nh gh\u00e9p v\u00f2ng l\u1eb7p<\/strong>:\n<ul>\n<li>V\u00f2ng l\u1eb7p \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1edfi m\u1ea3nh\u00a0<code class=\"\">v\u00f2ng l\u1eb7p [hasNext]<\/code>\u00a0m\u1ea3nh, cho th\u1ea5y r\u1eb1ng c\u00e1c tin nh\u1eafn b\u00ean trong s\u1ebd l\u1eb7p l\u1ea1i mi\u1ec5n l\u00e0 \u0111i\u1ec1u ki\u1ec7n\u00a0<code class=\"\">hasNext<\/code>\u00a0\u0111i\u1ec1u ki\u1ec7n l\u00e0 \u0111\u00fang.<\/li>\n<\/ul>\n<\/li>\n<li><strong>M\u1ea3nh gh\u00e9p tho\u00e1t v\u00f2ng l\u1eb7p<\/strong>:\n<ul>\n<li>\u0110i\u1ec1u ki\u1ec7n tho\u00e1t \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1edfi ph\u1ea7n<code class=\"\">tho\u00e1t [t\u00ecm th\u1ea5y]<\/code>ph\u1ea7n, cho th\u1ea5y v\u00f2ng l\u1eb7p s\u1ebd k\u1ebft th\u00fac n\u1ebfu \u0111i\u1ec1u ki\u1ec7n<code class=\"\">t\u00ecm th\u1ea5y<\/code>\u0111\u01b0\u1ee3c th\u1ecfa m\u00e3n.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tin nh\u1eafn t\u1ef1 th\u00e2n<\/strong>:\n<ul>\n<li>\u0110i\u1ec1u<code class=\"\">C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm<\/code>g\u1eedi m\u1ed9t tin nh\u1eafn t\u1ef1 th\u00e2n \u0111\u1ec3 x\u1eed l\u00fd m\u1ee5c.<\/li>\n<\/ul>\n<\/li>\n<li><strong>K\u00edch ho\u1ea1t<\/strong>:\n<ul>\n<li>Thanh k\u00edch ho\u1ea1t tr\u00ean<code class=\"\">C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm<\/code>\u0111\u01b0\u1eddng s\u1ed1ng cho th\u1ea5y kho\u1ea3ng th\u1eddi gian m\u00e0 n\u00f3 \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>C\u00e1c b\u01b0\u1edbc \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a logic l\u1eb7p v\u00e0 l\u1eb7p l\u1ea1i<\/h2>\n<h3>1. X\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n v\u00f2ng l\u1eb7p<\/h3>\n<p>X\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n m\u00e0 v\u00f2ng l\u1eb7p s\u1ebd th\u1ef1c hi\u1ec7n. Trong v\u00ed d\u1ee5, \u0111i\u1ec1u ki\u1ec7n v\u00f2ng l\u1eb7p l\u00e0<code class=\"\">hasNext<\/code>.<\/p>\n<h3>2. T\u1ea1o ph\u1ea7n k\u1ebft h\u1ee3p v\u00f2ng l\u1eb7p<\/h3>\n<p>V\u1ebd m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi t\u1eeb kh\u00f3a<code class=\"\">loop<\/code>v\u00e0 \u0111i\u1ec1u ki\u1ec7n v\u00f2ng l\u1eb7p. Bao b\u1ecdc c\u00e1c tin nh\u1eafn s\u1ebd l\u1eb7p l\u1ea1i trong h\u00ecnh ch\u1eef nh\u1eadt n\u00e0y.<\/p>\n<h3>3. Th\u00eam tin nh\u1eafn b\u00ean trong v\u00f2ng l\u1eb7p<\/h3>\n<p>Th\u00eam c\u00e1c tin nh\u1eafn s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi v\u00e0 nh\u1eadn b\u00ean trong v\u00f2ng l\u1eb7p. Trong v\u00ed d\u1ee5, \u0111\u00f3 l\u00e0<code class=\"\">getNext()<\/code>, <code class=\"\">test(item)<\/code>, v\u00e0<code class=\"\">process(item)<\/code>.<\/p>\n<h3>4. X\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n k\u1ebft th\u00fac<\/h3>\n<p>X\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n m\u00e0 v\u00f2ng l\u1eb7p s\u1ebd k\u1ebft th\u00fac. Trong v\u00ed d\u1ee5, \u0111i\u1ec1u ki\u1ec7n k\u1ebft th\u00fac l\u00e0<code class=\"\">\u0111\u00e3 t\u00ecm th\u1ea5y<\/code>.<\/p>\n<h3>5. T\u1ea1o kh\u1ed1i k\u1ebft h\u1ee3p \u0111i\u1ec1u ki\u1ec7n k\u1ebft th\u00fac<\/h3>\n<p>V\u1ebd m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi t\u1eeb kh\u00f3a<code class=\"\">break<\/code>v\u00e0 \u0111i\u1ec1u ki\u1ec7n k\u1ebft th\u00fac. \u0110\u1eb7t \u0111i\u1ec1u ki\u1ec7n k\u1ebft th\u00fac b\u00ean trong h\u00ecnh ch\u1eef nh\u1eadt n\u00e0y.<\/p>\n<h3>6. Th\u00eam tin nh\u1eafn t\u1ef1 th\u00e2n (n\u1ebfu c\u1ea7n)<\/h3>\n<p>N\u1ebfu \u0111\u1ed1i t\u01b0\u1ee3ng g\u1eedi tin nh\u1eafn cho ch\u00ednh n\u00f3 trong v\u00f2ng l\u1eb7p, h\u00e3y th\u00eam c\u00e1c tin nh\u1eafn t\u1ef1 th\u00e2n d\u01b0\u1edbi d\u1ea1ng m\u0169i t\u00ean quay l\u1ea1i c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng th\u1eddi gian.<\/p>\n<h3>7. Th\u00eam thanh k\u00edch ho\u1ea1t<\/h3>\n<p>V\u1ebd c\u00e1c h\u00ecnh ch\u1eef nh\u1eadt m\u1ecfng tr\u00ean c\u00e1c \u0111\u01b0\u1eddng th\u1eddi gian \u0111\u1ec3 bi\u1ec3u di\u1ec5n c\u00e1c kho\u1ea3ng th\u1eddi gian m\u00e0 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h2>S\u1eed d\u1ee5ng Visual Paradigm cho c\u00e1c s\u01a1 \u0111\u1ed3 UML<\/h2>\n<p><a href=\"http:\/\/www.visual-paradigm.com\">Visual Paradigm<\/a>l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 UML m\u1ea1nh m\u1ebd gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh t\u1ea1o v\u00e0 qu\u1ea3n l\u00fd c\u00e1c s\u01a1 \u0111\u1ed3 UML, bao g\u1ed3m c\u1ea3 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do v\u00ec sao n\u00f3 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m:<\/p>\n<ol>\n<li><strong>Giao di\u1ec7n tr\u1ef1c quan<\/strong>: Visual Paradigm cung c\u1ea5p giao di\u1ec7n tr\u1ef1c quan v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng, gi\u00fap vi\u1ec7c t\u1ea1o v\u00e0 ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng.<\/li>\n<li><strong>T\u00ednh n\u0103ng to\u00e0n di\u1ec7n<\/strong>: N\u00f3 cung c\u1ea5p nhi\u1ec1u t\u00ednh n\u0103ng phong ph\u00fa, bao g\u1ed3m h\u1ed7 tr\u1ee3 cho t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i s\u01a1 \u0111\u1ed3 UML, ki\u1ec3m tra m\u00f4 h\u00ecnh v\u00e0 sinh m\u00e3.<\/li>\n<li><strong>C\u00f4ng c\u1ee5 h\u1ee3p t\u00e1c<\/strong>: Visual Paradigm h\u1ed7 tr\u1ee3 c\u00e1c t\u00ednh n\u0103ng h\u1ee3p t\u00e1c, cho ph\u00e9p nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng c\u00f9ng l\u00e0m vi\u1ec7c tr\u00ean c\u00f9ng m\u1ed9t d\u1ef1 \u00e1n \u0111\u1ed3ng th\u1eddi.<\/li>\n<li><strong>T\u00edch h\u1ee3p<\/strong>: N\u00f3 t\u00edch h\u1ee3p v\u1edbi nhi\u1ec1u c\u00f4ng c\u1ee5 ph\u00e1t tri\u1ec3n v\u00e0 h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n, gi\u00fap qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n tr\u1edf n\u00ean tr\u01a1n tru h\u01a1n.<\/li>\n<li><strong>T\u00e0i li\u1ec7u<\/strong>: Visual Paradigm t\u1ea1o ra t\u00e0i li\u1ec7u chi ti\u1ebft t\u1eeb c\u00e1c m\u00f4 h\u00ecnh UML, h\u1ed7 tr\u1ee3 vi\u1ec7c truy\u1ec1n \u0111\u1ea1t v\u00e0 hi\u1ec3u r\u00f5 c\u00e1c y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ol>\n<h3>C\u00e1c b\u01b0\u1edbc t\u1ea1o s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 trong Visual Paradigm<\/h3>\n<ol>\n<li><strong>T\u1ea3i xu\u1ed1ng v\u00e0 c\u00e0i \u0111\u1eb7t Visual Paradigm<\/strong>: Truy c\u1eadp trang web<a href=\"https:\/\/www.visual-paradigm.com\/\">Trang web Visual Paradigm<\/a> v\u00e0 t\u1ea3i ph\u1ea7n m\u1ec1m. Tu\u00e2n theo c\u00e1c h\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t.<\/li>\n<li><strong>T\u1ea1o m\u1ed9t d\u1ef1 \u00e1n m\u1edbi<\/strong>: M\u1edf Visual Paradigm v\u00e0 t\u1ea1o m\u1ed9t d\u1ef1 \u00e1n m\u1edbi.<\/li>\n<li><strong>M\u1edf c\u00f4ng c\u1ee5 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/strong>: \u0110i t\u1edbi\u00a0<code class=\"\">S\u01a1 \u0111\u1ed3<\/code>\u00a0&gt;\u00a0<code class=\"\">M\u1edbi<\/code>\u00a0&gt;\u00a0<code class=\"\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/code>.<\/li>\n<li><strong>Th\u00eam c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi<\/strong>: K\u00e9o ph\u1ea7n t\u1eed \u0110\u01b0\u1eddng \u0111\u1eddi t\u1eeb thanh c\u00f4ng c\u1ee5 S\u01a1 \u0111\u1ed3 \u0111\u1ebfn b\u1ea3ng v\u1ebd v\u00e0 \u0111\u00e1nh nh\u00e3n ch\u00fang (v\u00ed d\u1ee5:\u00a0<code class=\"\">C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm<\/code>,\u00a0<code class=\"\">Kho l\u01b0u tr\u1eef<\/code>).<\/li>\n<li><strong>Th\u00eam tin nh\u1eafn<\/strong>: S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 Tin nh\u1eafn \u0111\u1ec3 th\u00eam c\u00e1c tin nh\u1eafn \u0111\u1ed3ng b\u1ed9, b\u1ea5t \u0111\u1ed3ng b\u1ed9 v\u00e0 tin nh\u1eafn tr\u1ea3 v\u1ec1 gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi.<\/li>\n<li><strong>Th\u00eam kh\u1ed1i k\u1ebft h\u1ee3p v\u00f2ng l\u1eb7p<\/strong>: S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 Kh\u1ed1i k\u1ebft h\u1ee3p \u0111\u1ec3 t\u1ea1o m\u1ed9t kh\u1ed1i v\u00f2ng l\u1eb7p v\u1edbi t\u1eeb kh\u00f3a\u00a0<code class=\"\">loop<\/code> v\u00e0 \u0111i\u1ec1u ki\u1ec7n v\u00f2ng l\u1eb7p.<\/li>\n<li><strong>Th\u00eam kh\u1ed1i k\u1ebft h\u1ee3p ng\u1eaft<\/strong>: S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 Kh\u1ed1i k\u1ebft h\u1ee3p \u0111\u1ec3 t\u1ea1o m\u1ed9t kh\u1ed1i ng\u1eaft v\u1edbi t\u1eeb kh\u00f3a\u00a0<code class=\"\">break<\/code> v\u00e0 \u0111i\u1ec1u ki\u1ec7n ng\u1eaft.<\/li>\n<li><strong>Th\u00eam tin nh\u1eafn t\u1ef1 th\u00e2n<\/strong>: S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 Tin nh\u1eafn t\u1ef1 th\u00e2n \u0111\u1ec3 th\u00eam c\u00e1c tin nh\u1eafn quay l\u1ea1i \u0111\u01b0\u1eddng \u0111\u1eddi c\u00f9ng m\u1ed9t.<\/li>\n<li><strong>Th\u00eam thanh k\u00edch ho\u1ea1t<\/strong>: K\u00e9o ph\u1ea7n t\u1eed Thanh k\u00edch ho\u1ea1t v\u00e0o c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi \u0111\u1ec3 bi\u1ec3u di\u1ec5n s\u1ef1 t\u1eadp trung ki\u1ec3m so\u00e1t.<\/li>\n<li><strong>Tinh ch\u1ec9nh s\u01a1 \u0111\u1ed3<\/strong>: S\u1eed d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng \u0111\u01b0\u1ee3c n\u00eau \u1edf tr\u00ean \u0111\u1ec3 tinh ch\u1ec9nh s\u01a1 \u0111\u1ed3 m\u1ed9t c\u00e1ch l\u1eb7p l\u1ea1i.<\/li>\n<\/ol>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>M\u00f4 h\u00ecnh h\u00f3a logic v\u00f2ng l\u1eb7p v\u00e0 l\u1eb7p l\u1ea1i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/sequence-diagram-software\/\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML<\/a> l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3u v\u00e0 truy\u1ec1n \u0111\u1ea1t h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. Visual Paradigm l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 tuy\u1ec7t v\u1eddi \u0111\u1ec3 t\u1ea1o v\u00e0 qu\u1ea3n l\u00fd<a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-uml\/\">s\u01a1 \u0111\u1ed3 UML<\/a>, cung c\u1ea5p m\u1ed9t b\u1ed9 t\u00ednh n\u0103ng to\u00e0n di\u1ec7n gi\u00fap n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c b\u01b0\u1edbc \u0111\u01b0\u1ee3c n\u00eau trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 m\u00f4 h\u00ecnh h\u00f3a hi\u1ec7u qu\u1ea3 c\u00e1c t\u01b0\u01a1ng t\u00e1c ph\u1ee9c t\u1ea1p v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng v\u00e0 \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 c\u00e1c b\u00ean li\u00ean quan hi\u1ec3u r\u00f5.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u00e0 c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao, truy c\u1eadp trang web<a href=\"https:\/\/www.visual-paradigm.com\/\">trang web Visual Paradigm<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 trong Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML) l\u00e0 nh\u1eefng c\u00f4ng c\u1ee5 m\u1ea1nh<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-10782","post","type-post","status-publish","format-standard","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - 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