insert java

Java is a popular programming language that is used to build a wide variety of applications, including web applications, mobile apps, desktop applications, and enterprise software. It was originally developed by Sun Microsystems in the 1990s and is now owned by Oracle Corporation. Java is known for its platform independence, which means that programs written in Java can run on any computer or operating system that supports the Java Virtual Machine (JVM). Java is also known for its robustness, security, and scalability, which make it a popular choice for building large-scale applications.

相关问题

java insert into_JAVA 中执行insert into语句

要在 Java 中执行 insert into 语句，可以使用 JDBC API。首先，需要加载数据库驱动程序，例如：

Class.forName("com.mysql.jdbc.Driver");

然后，建立数据库连接，并创建 Statement 对象，例如：

Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/test", "root", "password");
Statement stmt = conn.createStatement();

接下来，可以使用 executeUpdate 方法执行 insert into 语句，例如：

String sql = "insert into users (name, age) values ('John', 30)";
int rows = stmt.executeUpdate(sql);
System.out.println(rows + " rows inserted.");

最后，记得关闭 Statement 和数据库连接，例如：

stmt.close();
conn.close();

java insert()方法

Java中的insert()方法是用于在字符串中插入另一个字符串的方法。它的语法是：

public String insert(int index, String str)

其中，index是要插入的位置，str是要插入的字符串。这个方法会返回一个新的字符串，原字符串不会被修改。