{"id":115746,"date":"2024-03-23T03:59:22","date_gmt":"2024-03-22T18:59:22","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%aeinteger%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%ef%bc%9f\/"},"modified":"2024-04-04T12:16:34","modified_gmt":"2024-04-04T03:16:34","slug":"java%e3%81%aeinteger%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%aeinteger%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%ef%bc%9f\/","title":{"rendered":"Java\u306eInteger\u306e\u4f7f\u3044\u65b9\u306f\uff1f"},"content":{"rendered":"

Java\u3067\u306f\u3001Integer\u306f\u6574\u6570\u578b\u30c7\u30fc\u30bf\u3092\u8868\u3059\u30af\u30e9\u30b9\u3067\u3059\u3002\u6574\u6570\u30c7\u30fc\u30bf\u306e\u64cd\u4f5c\u3084\u51e6\u7406\u3092\u884c\u3046\u30e1\u30bd\u30c3\u30c9\u3084\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n

\u4ee5\u4e0b\u306bInteger\u30af\u30e9\u30b9\u306e\u4e00\u822c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u306e\u4e00\u90e8\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n

    \n
  1. Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u3001new\u30ad\u30fc\u30ef\u30fc\u30c9\u304bInteger.valueOf()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u57fa\u672c\u6574\u6570\u578b\u304b\u3089Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u4f8b\uff1a<\/li>\n
  2. Integer num1 = new Integer(10);
    \nInteger num2 = Integer.valueOf(“20”);<\/li>\n
  3. Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u57fa\u672c\u7684\u306a\u6574\u6570\u306b\u5909\u63db\u3057\u307e\u3059\u3002intValue()\u3001shortValue()\u3001longValue() \u306e\u3088\u3046\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5bfe\u5fdc\u3059\u308b\u57fa\u672c\u7684\u306a\u6574\u6570\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002 \u4f8b:<\/li>\n
  4. int value1 = ((Integer)num1).intValue();
    \nshort value2 = ((Integer)num1).shortValue();
    \nlong value3 = ((Integer)num1).longValue();<\/li>\n
  5. \u6587\u5b57\u5217\u3092Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3059\u308b\uff1aparseInt() \u307e\u305f\u306f valueOf() \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u6587\u5b57\u5217\u3092 Integer \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002 \u4f8b\uff1a<\/li>\n
  6. String str = “100”;
    \nint num = Integer.parseInt(str);<\/li>\n
  7. Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6587\u5b57\u5217\u306b\u5909\u63db\u3059\u308b\uff1atoString()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3068\u3001Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6587\u5b57\u5217\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002
    \n\u4f8b\uff1a<\/li>\n
  8. String str = String.valueOf(num);<\/li>\n
  9. \u6574\u6570\u306e\u6bd4\u8f03\u306f\u3001equals() \u30e1\u30bd\u30c3\u30c9\u3084 compareTo() \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u30012 \u3064\u306e Integer \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5024\u304c\u7b49\u3057\u3044\u304b\u3069\u3046\u304b\u3001\u5927\u5c0f\u95a2\u4fc2\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
    \n\u4f8b:<\/li>\n
  10. int num1 = 10;
    \nint num2 = 20;
    \nif (num1 == num2) {
    \nSystem.out.println(“num1\u3068num2\u306f\u540c\u3058”);
    \n}
    \nif (num1 < num2) { System.out.println(“num1\u306fnum2\u3088\u308a\u5c0f\u3055\u3044”); } if (num1 > num2) {
    \nSystem.out.println(“num1\u306fnum2\u3088\u308a\u5927\u304d\u3044”);
    \n}<\/li>\n
  11. Java\u3067\u306f\u3001\u57fa\u672c\u578b\u6570\u5024\u306f\u3001\u5bfe\u5fdc\u3059\u308bInteger\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u81ea\u52d5\u7684\u306b\u88c5\u7bb1\u3055\u308c\u3001\u307e\u305f\u57fa\u672c\u578b\u6570\u5024\u306b\u81ea\u52d5\u7684\u306b\u30a2\u30f3\u30dc\u30c3\u30af\u30b9\u3055\u308c\u307e\u3059\u3002\u4f8b\uff1a<\/li>\n
  12. int num = 10; \/\/ \u30aa\u30fc\u30c8\u30dc\u30af\u30b7\u30f3\u30b0
    \nint value = num; \/\/ \u30aa\u30fc\u30c8\u30a2\u30f3\u30dc\u30af\u30b7\u30f3\u30b0<\/li>\n<\/ol>\n

    Integer\u578b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6bd4\u8f03\u306f\u3001”=”\u6f14\u7b97\u5b50\u3067\u306f\u306a\u304f\u3001equals()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u884c\u3046\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002”=”\u6f14\u7b97\u5b50\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3078\u306e\u53c2\u7167\u304c\u7b49\u3057\u3044\u304b\u3069\u3046\u304b\u3092\u6bd4\u8f03\u3057\u3001\u5024\u304c\u7b49\u3057\u3044\u304b\u3069\u3046\u304b\u3092\u6bd4\u8f03\u3059\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    Java\u3067\u306f\u3001Integer\u306f\u6574\u6570\u578b\u30c7\u30fc\u30bf\u3092\u8868\u3059\u30af\u30e9\u30b9\u3067\u3059\u3002\u6574\u6570\u30c7\u30fc\u30bf\u306e\u64cd\u4f5c\u3084\u51e6\u7406\u3092\u884c\u3046\u30e1\u30bd\u30c3\u30c9\u3084\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002 \u4ee5\u4e0b\u306bInteger\u30af\u30e9\u30b9\u306e\u4e00\u822c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u306e\u4e00\u90e8\u3092\u793a\u3057\u307e\u3059\u3002 Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u306b […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-115746","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava\u306eInteger\u306e\u4f7f\u3044\u65b9\u306f\uff1f - Blog - Silicon Cloud<\/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:\/\/www.silicloud.com\/ja\/blog\/java\u306einteger\u306e\u4f7f\u3044\u65b9\u306f\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u306eInteger\u306e\u4f7f\u3044\u65b9\u306f\uff1f\" \/>\n<meta property=\"og:description\" content=\"Java\u3067\u306f\u3001Integer\u306f\u6574\u6570\u578b\u30c7\u30fc\u30bf\u3092\u8868\u3059\u30af\u30e9\u30b9\u3067\u3059\u3002\u6574\u6570\u30c7\u30fc\u30bf\u306e\u64cd\u4f5c\u3084\u51e6\u7406\u3092\u884c\u3046\u30e1\u30bd\u30c3\u30c9\u3084\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002 \u4ee5\u4e0b\u306bInteger\u30af\u30e9\u30b9\u306e\u4e00\u822c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u306e\u4e00\u90e8\u3092\u793a\u3057\u307e\u3059\u3002 Integer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u306b […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u306einteger\u306e\u4f7f\u3044\u65b9\u306f\uff1f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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