{"id":16612,"date":"2024-03-16T04:34:44","date_gmt":"2024-03-15T19:34:44","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ae2%e6%ac%a1%e5%85%83%e9%85%8d%e5%88%97%e3%82%92%e6%ad%a3%e3%81%97%e3%81%8f%e4%bd%bf%e7%94%a8%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/"},"modified":"2025-08-06T08:00:29","modified_gmt":"2025-08-05T23:00:29","slug":"java%e3%81%ae2%e6%ac%a1%e5%85%83%e9%85%8d%e5%88%97%e3%82%92%e6%ad%a3%e3%81%97%e3%81%8f%e4%bd%bf%e7%94%a8%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ae2%e6%ac%a1%e5%85%83%e9%85%8d%e5%88%97%e3%82%92%e6%ad%a3%e3%81%97%e3%81%8f%e4%bd%bf%e7%94%a8%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/","title":{"rendered":"Java\u306e2\u6b21\u5143\u914d\u5217\u3092\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"

Java\u3067\u306f\u30012\u6b21\u5143\u914d\u5217\u3092\u4f7f\u7528\u3057\u30662\u6b21\u5143\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u304a\u3088\u3073\u64cd\u4f5c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306b\u3001\u6b63\u3057\u3044\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n

    \n
  1. \u4e8c\u6b21\u5143\u914d\u5217\u3092\u5ba3\u8a00\u3059\u308b\u306b\u306f\u3001\u307e\u305a\u4e8c\u6b21\u5143\u914d\u5217\u5909\u6570\u3092\u5ba3\u8a00\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u306e\u69cb\u6587\u3092\u4f7f\u7528\u3057\u3066\u4e8c\u6b21\u5143\u914d\u5217\u3092\u5ba3\u8a00\u3067\u304d\u307e\u3059\uff1a<\/li>\n
  2. arrayName\u3068\u3044\u3046\u540d\u524d\u306edataType[]\u306e2\u6b21\u5143\u914d\u5217\u3002<\/li>\n
  3. \u307e\u305f\u306f<\/li>\n
  4. \u30c7\u30fc\u30bf\u578b\u306e\u914d\u5217\u540d[][]\u3002<\/li>\n
  5. \u6574\u6570\u578b\u306e2\u6b21\u5143\u914d\u5217\u3092\u5ba3\u8a00\u3059\u308b\u4f8b\uff1a<\/li>\n
  6. matrix\u3068\u3044\u30462\u6b21\u5143\u914d\u5217\u3002<\/li>\n
  7. \u4e8c\u6b21\u5143\u914d\u5217\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4e8c\u6b21\u5143\u914d\u5217\u3092\u5ba3\u8a00\u3057\u305f\u5f8c\u3001new\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u4e8c\u6b21\u5143\u914d\u5217\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3001\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u69cb\u6587\u3092\u4f7f\u7528\u3057\u3066\u4e8c\u6b21\u5143\u914d\u5217\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/li>\n
  8. arrayName\u306f\u3001dataType\u306e[rowSize][colSize]\u30b5\u30a4\u30ba\u306e2\u6b21\u5143\u914d\u5217\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n
  9. \u4f8b\u3048\u3070\u30013\u884c4\u5217\u306e\u6574\u6570\u578b\u306e2\u6b21\u5143\u914d\u5217\u3092\u4f5c\u6210\u3059\u308b\uff1a<\/li>\n
  10. matrix = \u65b0\u3057\u3044int\u578b\u306e\u914d\u5217[3][4];<\/li>\n
  11. \u4e8c\u6b21\u5143\u914d\u5217\u306e\u8981\u7d20\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u306b\u306f\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4e8c\u6b21\u5143\u914d\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f0\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u4e8c\u6b21\u5143\u914d\u5217\u306e\u8981\u7d20\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u69cb\u6587\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n
  12. arrayName\u306e[rowIndex][colIndex]\u306bvalue\u3092\u4ee3\u5165\u3059\u308b\u3002<\/li>\n
  13. \u4f8b\u3048\u3070\u30012\u6b21\u5143\u914d\u5217\u306e2\u884c\u76ee\u306e3\u5217\u76ee\u306b\u502410\u3092\u4ee3\u5165\u3059\u308b\uff1a<\/li>\n
  14. matrix\u306e1\u884c2\u5217\u76ee\u306e\u8981\u7d20\u309210\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n
  15. \u4e8c\u6b21\u5143\u914d\u5217\u306e\u53cd\u5fa9\u51e6\u7406\uff1a\u3059\u3079\u3066\u306e\u8981\u7d20\u3092\u4e8c\u6b21\u5143\u914d\u5217\u3067\u53cd\u5fa9\u51e6\u7406\u3059\u308b\u306b\u306f\u3001\u30cd\u30b9\u30c8\u3055\u308c\u305f\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5916\u5074\u306e\u30eb\u30fc\u30d7\u306f\u884c\u3092\u53cd\u5fa9\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3001\u5185\u5074\u306e\u30eb\u30fc\u30d7\u306f\u5217\u3092\u53cd\u5fa9\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u4f8b\uff1a<\/li>\n
  16. for (int i = 0; i < matrix.length; i++) {
    \nfor (int j = 0; j < matrix[i].length; j++) {
    \nSystem.out.print(matrix[i][j] + ” “);
    \n}
    \nSystem.out.println();
    \n}
    \n\u3092\u65e5\u672c\u8a9e\u3067\u8a00\u3046\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff1afor (int i = 0; i < matrix.length; i++) {
    \nfor (int j = 0; j < matrix[i].length; j++) {
    \nSystem.out.print(matrix[i][j] + ” “);
    \n}
    \nSystem.out.println();
    \n}<\/li>\n
  17. \u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u3001\u4e8c\u6b21\u5143\u914d\u5217\u306e\u3059\u3079\u3066\u306e\u8981\u7d20\u3092\u884c\u3054\u3068\u306b\u5370\u5237\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u3053\u308c\u306fJava\u30672\u6b21\u5143\u914d\u5217\u3092\u4f7f\u7528\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u6cd5\u3067\u3059\u3002\u5177\u4f53\u7684\u306a\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u3001\u884c\u3084\u5217\u306e\u5408\u8a08\u3092\u8a08\u7b97\u3057\u305f\u308a\u3001\u6700\u5927\u5024\u3084\u6700\u5c0f\u5024\u3092\u898b\u3064\u3051\u308b\u306a\u3069\u3001\u4ed6\u306e\u65b9\u6cd5\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    Java\u3067\u306f\u30012\u6b21\u5143\u914d\u5217\u3092\u4f7f\u7528\u3057\u30662\u6b21\u5143\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u304a\u3088\u3073\u64cd\u4f5c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306b\u3001\u6b63\u3057\u3044\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\uff1a \u4e8c\u6b21\u5143\u914d\u5217\u3092\u5ba3\u8a00\u3059\u308b\u306b\u306f\u3001\u307e\u305a\u4e8c\u6b21\u5143\u914d\u5217\u5909\u6570\u3092\u5ba3\u8a00\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u306e\u69cb\u6587\u3092\u4f7f\u7528\u3057\u3066\u4e8c\u6b21\u5143\u914d\u5217\u3092\u5ba3\u8a00\u3067\u304d […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-16612","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\nJava\u306e2\u6b21\u5143\u914d\u5217\u3092\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Java\u306e2\u6b21\u5143\u914d\u5217\u3092\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u306e2\u6b21\u5143\u914d\u5217\u3092\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u306e2\u6b21\u5143\u914d\u5217\u3092\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f\" \/>\n<meta property=\"og:description\" content=\"Java\u306e2\u6b21\u5143\u914d\u5217\u3092\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u306e2\u6b21\u5143\u914d\u5217\u3092\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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