{"id":1607,"date":"2024-02-11T00:00:00","date_gmt":"2024-02-11T05:00:00","guid":{"rendered":"https:\/\/molecularsciences.org\/content\/?p=1607"},"modified":"2024-02-12T08:06:55","modified_gmt":"2024-02-12T13:06:55","slug":"cobol-cheat-sheets","status":"publish","type":"post","link":"https:\/\/molecularsciences.org\/content\/cobol-cheat-sheets\/","title":{"rendered":"Cobol Cheat Sheets"},"content":{"rendered":"\n<p>Program Structure:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>IDENTIFICATION DIVISION.\r\nPROGRAM-ID. ProgramName.\r\n\r\nDATA DIVISION.\r\nWORKING-STORAGE SECTION.\r\n01 VariableName PIC X(10).\r\n\r\nPROCEDURE DIVISION.\r\n    Display 'Hello, World!'.\r\n    STOP RUN.\r<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Data Types:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Alphanumeric:<\/strong> <code>PIC X(n)<\/code> (e.g., <code>PIC X(10)<\/code> for a 10-character string).<\/li>\n\n\n\n<li><strong>Numeric:<\/strong> <code>PIC 9(n)<\/code> (e.g., <code>PIC 9(3)<\/code> for a 3-digit number).<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Data Division:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>File Definition:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>FILE SECTION.\r\nFD File-Name.\r\n01 Record-Name.\r\n    05 Field1 PIC X(10).\r\n    05 Field2 PIC 9(3).\r<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Working with Data:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>MOVE Statement:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>MOVE 'Value' TO VariableName.\r<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ADD Statement:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>ADD 10 TO NumVariable.\r<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SUBTRACT Statement:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>SUBTRACT 5 FROM NumVariable.\r<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Conditional Statements:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IF Statement:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>IF Condition\r\n    Perform Some-Operation\r\nEND-IF.\r<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>EVALUATE Statement:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>EVALUATE Variable\r\n    WHEN 1\r\n        Perform Operation-1\r\n    WHEN 2\r\n        Perform Operation-2\r\n    WHEN OTHER\r\n        Perform Default-Operation\r\nEND-EVALUATE.\r<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Loops:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PERFORM UNTIL:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>PERFORM UNTIL Condition\r\n    Perform Some-Operation\r\nEND-PERFORM.\r<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PERFORM VARYING:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>PERFORM VARYING Counter FROM 1 BY 1 UNTIL Counter > 10\r\n    Perform Some-Operation\r\nEND-PERFORM.\r<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Procedures:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Paragraphs:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>Some-Operation.\r\n    Display 'Performing Some Operation'.\r\n    ...\r<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">File Handling:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>OPEN, READ, CLOSE File:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>OPEN INPUT File-Name.\r\nREAD File-Name INTO Record-Name.\r\nCLOSE File-Name.\r<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Display Output:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>DISPLAY Statement:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>DISPLAY 'Hello, World!'.\r<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Stop Execution:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>STOP RUN Statement:<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>STOP RUN.\r<\/code><\/pre>\n\n\n\n<p>This is a basic COBOL cheat sheet covering fundamental syntax and constructs. COBOL is known for its verbose syntax, and this cheat sheet provides a starting point for understanding its structure and commonly used statements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program Structure: Data Types: Data Division: Working with Data: Conditional Statements: Loops: Procedures: File Handling: Display Output: Stop Execution: This is a basic COBOL cheat sheet covering fundamental syntax and constructs. COBOL is known for its verbose syntax, and this cheat sheet provides a starting point for understanding its structure and commonly used statements.<\/p>\n","protected":false},"author":1,"featured_media":1771,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[265],"tags":[],"class_list":["post-1607","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-reference"],"_links":{"self":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/1607","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/comments?post=1607"}],"version-history":[{"count":1,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/1607\/revisions"}],"predecessor-version":[{"id":1608,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/1607\/revisions\/1608"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/media\/1771"}],"wp:attachment":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/media?parent=1607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/categories?post=1607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/tags?post=1607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}