{"id":24405,"date":"2022-12-02T18:50:51","date_gmt":"2022-12-02T13:20:51","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-inputing-using-scanner-class\/"},"modified":"2022-12-02T18:50:51","modified_gmt":"2022-12-02T13:20:51","slug":"solved-inputing-using-scanner-class","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-inputing-using-scanner-class\/","title":{"rendered":"[Solved] Inputing using Scanner class"},"content":{"rendered":"

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

\n
\n
<\/div>\n
\n
\n

Your first understanding is wrong.<\/p>\n

\n

what i understood from my past experiences is .nextInt() or
\n .nextDouble() would keep on searching until the integer or the double
\n is found in the same or the next line it doesn’t matter<\/p>\n<\/blockquote>\n

nextInt()<\/code> and nextDouble()<\/code> waits for the integer and double respectively. If it gets string instead of it’s expectation, it throws InputMismatchException<\/code>.<\/p>\n

You can run this code and see for yourself.<\/p>\n

import java.util.Scanner;\n\npublic class Main\n{\n    public static void main(String[] args)\n    {\n        Scanner s = new Scanner(System.in);\n        s.nextInt();\n    }\n}\n<\/code><\/pre>\n
According to your quote: <\/p>\n
\n
.nextInt() or .nextDouble() would keep on searching until the integer
\n  or the double is found in the same or the next line it doesn’t matter<\/p>\n<\/blockquote>\n
Give input: Abcdf234gd<\/code>. You won’t get 234<\/code>. You get InputMismatchException<\/code>.<\/p>\n
For .next()<\/code> and .nextLine()<\/code>,<\/p>\n
.next()<\/code> : Only reads and returns a string till it encounters a space or EOF<\/code>.<\/p>\n
.nextLine()<\/code> : Returns string till it encounters \\n<\/code> or \\r<\/code> or EOF<\/code>. Means, it returns whole line.<\/p>\n
\n
Cursor Positions<\/strong><\/p>\n
next()<\/code><\/strong>:<\/p>\n
Consider the string: <\/p>\n
ABC DEF GHI JKL MNO PQR STU VWX YZ\n<\/code><\/pre>\n
Initial Position: <\/p>\n
->ABC DEF GHI JKL MNO PQR STU VWX YZ\n<\/code><\/pre>\n
When you call next()<\/code>, the cursor moves to: <\/p>\n
ABC ->DEF GHI JKL MNO PQR STU VWX YZ\n<\/code><\/pre>\n
and returns ABC<\/code><\/p>\n
\n
nextLine()<\/code><\/strong>:<\/p>\n
Consider the string: <\/p>\n
ABC DEF GHI JKL \nMNO PQR STU VWX\nYZ\n<\/code><\/pre>\n
Initial Position: <\/p>\n
->ABC DEF GHI JKL\nMNO PQR STU VWX \nYZ\n<\/code><\/pre>\n
When you call nextLine()<\/code>, the cursor moves to next line: <\/p>\n
ABC DEF GHI JKL\n->MNO PQR STU VWX\nYZ\n<\/code><\/pre>\n
and returns ABC DEF GHI JKL<\/code>.<\/p>\n
I hope it helps.<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            0<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved Inputing using Scanner class <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] Your first understanding is wrong. what i understood from my past experiences is .nextInt() or .nextDouble() would keep on searching until the integer or the double is found in the same or the next line it doesn’t matter nextInt() and nextDouble() waits for the integer and double respectively. If it gets string instead of … 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":[323],"class_list":["post-24405","post","type-post","status-publish","format-standard","hentry","category-solved","tag-java"],"yoast_head":"\n[Solved] Inputing using Scanner class - 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-inputing-using-scanner-class\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Inputing using Scanner class - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Your first understanding is wrong. what i understood from my past experiences is .nextInt() or .nextDouble() would keep on searching until the integer or the double is found in the same or the next line it doesn’t matter nextInt() and nextDouble() waits for the integer and double respectively. 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