在Java中,嵌套语句(Nested Statement)是指在一个语句块内部包含另一个语句块的情况。这允许在更细粒度的控制结构中对代码进行组织和执行。以下是对嵌套语句的详细解释: 1. 解释什么是嵌套语句 嵌套语句是指在Java编程中,一个语句块内部包含另一个或多个语句块的结构。这种结构允许更复杂的逻辑控制和代码组织。例如...
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner read = new Scanner(System.in); int purchases = read.nextInt(); //complete the code if(purchases > 15000) { if(purchases > 30000) { System.out.println("Gift card"); } else { System.out...
if (number < 5) { number += 5; } else { number -= 5; } In this example, the statement number += 5; will be executed only if the value of number is less than 5. The statement number -= 5; will be executed if the value of number is greater than or equal to 5. How if...
Statement statement = connection.createStatement(); statement.execute("insert into t_good(good_name, price) values('iphone15', 9999)"); statement.close(); boolean flag = true; if(flag) { throw new RuntimeException("xxxx"); } } catch (Exception e) { e.printStackTrace(); connection.roll...
}else if (response.getStatusLine().getStatusCode()==304) { //noop }else{ Dictionary.("remote_ext_dict {} return bad code {}" , location , response.getStatusLine().getStatusCode() ); } } catch (Exception e) { Dictionary.logger.error("remote_ext_dict {} error!",e , location);...
logService.end(log);if(isFinished) {returnPublicReturn.getSuccessful(); }else{returnPublicReturn.getUnSuccessful(message); } } } 注: a.主事务是 SaleMainService.sale,它的传递特性是标准的REQUIRED(如果有用现有的,否则新建一个事务) b.独立事务是SaleInfoService.sale,它的传递特性是REQUIRES_NEW(独立...
(nestedEntryName); if (nestedEntry != null) { // 处理嵌套的JAR文件 System.out.println("Found nested JAR file: " + nestedEntryName); // 进一步处理逻辑... } else { System.out.println("Nested JAR file not found: " + nestedEntryName); } outerJar.close(...
interacts with the instance members of its outer class just like any other top-level class. The static nested classStaticNestedClasscan't directly accessouterFieldbecause it's an instance variable of the enclosing class,OuterClass. The Java compiler generates an error at the highlighted statement:...
org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.executor.ExecutorException: Error preparing statement. Cause: java.lang.StringIndexOutOfBoundsException: String index out of range: 96 at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptio...
("批处理执行成功!");}catch(SQLExceptione){if(einstanceofjava.sql.BatchUpdateException){java.sql.BatchUpdateExceptionbuex=(java.sql.BatchUpdateException)e;SQLExceptionnextException=buex.getNextException();System.out.println("批处理中出现错误: "+nextException.getMessage());}else{e.printStackTrace();...