工具-尺寸、大小

Posted on 2019-12-19 | In Android代码片段

将设计在苹果的宽高转换成Android的宽高1234567891011121314151617181920212223242526272829303132333435public class IOSDisplayTransfer { /** * 将设计在苹果的高度转换成android的高度 */ public static int caculateHeightFromApple(Context context, int appleHeight) { int rw = DimensUtil.getDisplayWidth(con ...

字符串相关

Posted on 2019-12-19 | In Java代码片段

java_判断是否中文字符

public class IsChineseOrEnglish{
    //GENERAL_PUNCTUATION 判断中文的“号
    //CJK_SYMBOLS_and_punctuation 判断中文的。号
    //HALFWIDTH_AND_FULLWIDTH_FORMS 判断中中文的，号

    public static boolean isChinese(Char c){
        Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
        if(ub == Character.UnicodeBlock.CJK_SYMBOLS_and_punctuation
            || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
            || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
            || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
            || ub == Character.UnicodeBlock.CJK_SYMBOLS_and_punctuation
            || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS){
                return true;
        }
        return false;
    }

    public static void isChiese(String strName){
        char[] ch = strName.toCharArray();
        for(int i = 0; i < ch.length; i++){
            char c = ch[i];
            if(isChinese(c) == true){
                System.out.println(isChiese(c));
                return;
            } else {
                System.out.println(isChiese(c));
                return;
            }
        }
    }

    public static void main(String[] args){
        Random r = new Random();
        for(int i = 0; i < 20; i++){
            System.out.println(r.nextInt(10) + 1);
            isChinese("き");
            isChinese("中国");
        }
    }
}

方法反射实例

Posted on 2019-12-19 | In Java代码片段

方法反射实例

public class ReflectCase {
 
    public static void main(String[] args) throws Exception {
        Proxy target = new Proxy();
        Method method = Proxy.class.getDeclaredMethod("run");
        method.invoke(target);
    }
 
    static class Proxy {
        public void run() {
            System.out.println("run");
        }
    }
}

获取本地IP

Posted on 2019-12-19 | In Java代码片段

获取本地IP

InetAddress ia = null;
try{
    ia = ia.getLocalHost();
    String localName = ia.getHostName();
    String localIP = ia.getHostAddress();
    Systemt.out.println("本机名称是：" + localName);
    Systemt.out.println("本机的IP是：" + localIP);
} catch(Exception e){
    e.printStackTrace();
}

知识-Markdown新手指南

Posted on 2019-12-18 | In 其他IT

MarkDown 新手指南

Markdown 扩展语法入门 | Markdown 官方教程
 MarkDown语法超详细教程 - 经验分享 - Obsidian 中文论坛

标题

Map相关

Posted on 2019-07-04 | In Java代码片段

循环输出HashMap内容

private static void loogerHashMapContent() {
    HashMap<String, Object> hashMap = new HashMap<String, Object>();
    hashMap.put("carrier", "carrier1");
    hashMap.put("province", "province1");
    hashMap.put("ismodem", "ismodem1");
    hashMap.put("state", "state1");


    Iterator<Entry<String, Object>> iterator = hashMap.entrySet().iterator();
    while (iterator.hasNext()) {
        Entry<String, Object> entry = iterator.next();
        System.out.print(entry.getKey()+":"+entry.getValue()+",");
    }
    System.out.println();
}