while (insertIndex>=0&&insertValue<array[insertIndex]){ array[insertIndex+1] = array[insertIndex];//将大于待插入值的元素向后移动 insertIndex--;//继续向前找要插入的位置 } //位置找到后插入到这个位置 array[insertIndex+1]=insertValue; System.out.println("第"+i+"次插入数组序列:"+ Arrays.t...
Integer.parseInt(null); // throws java.lang.NumberFormatException: null Double.parseDouble(null); // throws java.lang.NullPointerException 1. 2. 3. 4. 5. 5.Java中经常使用的运行时异常 这里列举一部分: IllegalArgumentException ArrayIndexOutOfBoundsException 在有些场景某个目标对象不满足我们的预期,...
实际存在两种数组结构:1 字符串数组 2 json数组. json数组使用json进行存储,也可以是jsonb二进制存储方式,但是二进制数据虽然更快,但在数据库中不直观,这里就使用了json. 方式1: 指定数组数据类型 @DatapublicstaticclassSelfData{publicString[] series;publicJsonNodereport_rows; }publicvoid insertArrayTopostgres(...
==>Preparing:insertintomybatis.sys_user(user_name, user_password, user_email, user_info, head_img, create_time)values(?, ?, ?, ?, ?, ?)==>Parameters: test1(String),123456(String), test@mybatis.tk(String), test info(String), [B@416c58f5(byte[]),2021-03-1722:05:49.828(Timest...
insert intosys_user(id,user_name,user_password,user_email,user_info,head_img,create_time)values(#{id},#{userName},#{userPassword},#{userEmail},#{userInfo},#{headImg,jdbcType=BLOB},#{createTime,jdbcType=TIMESTAMP}) 先看下insert元素标签包含的属性 ...
// Scala program to insert an item into the array.importscala.util.control.Breaks._objectSample{defmain(args:Array[String]){varIntArray=newArray[Int](6)vari:Int=0varj:Int=0varitem:Int=0varflag:Int=0IntArray(0)=10;IntArray(1)=20;IntArray(2)=30;IntArray(3)=40;IntArray(4)=50;prin...
(BaseMapperTest.java:29) - reader close successfully 2018-04-16 00:36:27,514 INFO [main] (UserMapperTest.java:191) - insertSysUser2Test 2018-04-16 00:36:28,049 DEBUG [main] (BaseJdbcLogger.java:142) - ==> Preparing: insert into sys_user( user_name, user_password, user_email, ...
JavaArray<T> 屬性 方法 明確介面實作 ICollection<T>。加 ICollection<T>。計數 ICollection<T>。刪除 IList<T>。插入 IList<T>。RemoveAt ICollection.CopyTo ICollection.Count ICollection.IsSynchronized ICollection.SyncRoot IEnumerable.GetEnumerator IList.Add IList.Contains IList.IndexOf IList....
[Android.Runtime.Register("insert","(Ljava/lang/Object;I)V","GetInsert_Ljava_lang_Object_IHandler")]publicvirtualvoidInsert(Java.Lang.Object?object,intindex); Parameters object Object The object to insert into the array. index Int32
To insert more than one record, make an array containing the values, and insert a question mark in the sql, which will be replaced by the value array: INSERT INTO customers (name, address) VALUES ? Example Fill the "customers" table with data: ...