{"id":15456,"date":"2022-10-11T16:08:29","date_gmt":"2022-10-11T10:38:29","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-my-code-dont-work-in-main-class-duplicate\/"},"modified":"2022-10-11T16:08:29","modified_gmt":"2022-10-11T10:38:29","slug":"solved-my-code-dont-work-in-main-class-duplicate","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-my-code-dont-work-in-main-class-duplicate\/","title":{"rendered":"[Solved] my code don’t work in Main class [duplicate]"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

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You use post increment and decrement operator :<\/p>\n

    return number++;\n    return number--;\n<\/code><\/pre>\n
For example here :<\/p>\n
public static int addOne(int number) {\n    return ++number;\n}\n<\/code><\/pre>\n
The value number is incremented but only as soon as the next statement.
\nSo as you return, the same value as the parameter is returned.<\/p>\n
It is the same thing here :<\/p>\n
public static int drawOne(int number) {\n    return number--;\n}\n<\/code><\/pre>\n
number<\/code> will never be decremented as the number is returned in the same statement that the decrementation.<\/p>\n
You have several workarounds :<\/p>\n
Make things in 2 times :<\/p>\n
public static int addOne(int number) {\n    number++;  \/\/ post increment\n    return number; \/\/ value incremented here\n}\n<\/code><\/pre>\n
Use pre increment operator :<\/p>\n
public static int addOne(int number) {\n    return ++number; \/\/ incremented right now\n}\n<\/code><\/pre>\n
Or more simply increment with 1 :<\/p>\n
public static int addOne(int number) {\n    return number+1; \/\/ incremented right now\n}\n<\/code><\/pre>\n
It is exactly the same logic for the decrement operator.<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            0<\/span> <\/p><\/div>\n<\/div>\n
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solved my code don’t work in Main class [duplicate] <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] You use post increment and decrement operator : return number++; return number–; For example here : public static int addOne(int number) { return ++number; } The value number is incremented but only as soon as the next statement. So as you return, the same value as the parameter is returned. It is the same … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[519,323,409],"class_list":["post-15456","post","type-post","status-publish","format-standard","hentry","category-solved","tag-class","tag-java","tag-program-entry-point"],"yoast_head":"\n[Solved] my code don't work in Main class [duplicate] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-my-code-dont-work-in-main-class-duplicate\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] my code don't work in Main class [duplicate] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You use post increment and decrement operator : return number++; return number--; For example here : public static int addOne(int number) { return ++number; } The value number is incremented but only as soon as the next statement. 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