This is a small program on the POJO for your learning, if there is a better idea to explore all

StudentMS
.........\build
.........\.....\classes
.........\.....\.......\META-INF
.........\.....\.......\........\persistence.xml
.........\.....\.......\........\Student.dbschema
.........\.....\.......\sql
.........\.....\.......\...\student1.sql
.........\.....\.......\student
.........\.....\.......\.......\Account.class
.........\.....\.......\.......\ActionMethod.class
.........\.....\.......\.......\AddFrame$1.class
.........\.....\.......\.......\AddFrame$2.class
.........\.....\.......\.......\AddFrame$3.class
.........\.....\.......\.......\AddFrame.class
.........\.....\.......\.......\DbConn.class
.........\.....\.......\.......\LoginFrame$1.class
.........\.....\.......\.......\LoginFrame$2.class
.........\.....\.......\.......\LoginFrame$3.class
.........\.....\.......\.......\LoginFrame.class
.........\.....\.......\.......\MainFrame$1.class
.........\.....\.......\.......\MainFrame$2.class
.........\.....\.......\.......\MainFrame$3.class
.........\.....\.......\.......\MainFrame$4.class
.........\.....\.......\.......\MainFrame$5.class
.........\.....\.......\.......\MainFrame$6.class
.........\.....\.......\.......\MainFrame$7.class
.........\.....\.......\.......\MainFrame$8.class
.........\.....\.......\.......\MainFrame$9.class
.........\.....\.......\.......\MainFrame.class
.........\.....\.......\.......\ModifyFrame$1.class
.........\.....\.......\.......\ModifyFrame$2.class
.........\.....\.......\.......\ModifyFrame$3.class
.........\.....\.......\.......\ModifyFrame$4.class
.........\.....\.......\.......\ModifyFrame$5.class
.........\.....\.......\.......\ModifyFrame$6.class
.........\.....\.......\.......\ModifyFrame.class
.........\.....\.......\.......\SetPwdFrame$1.class
.........\.....\.......\.......\SetPwdFrame$2.class
.........\.....\.......\.......\SetPwdFrame$3.class
.........\.....\.......\.......\SetPwdFrame$4.class
.........\.....\.......\.......\SetPwdFrame.class
.........\.....\.......\.......\ShowFrame$1.class
.........\.....\.......\.......\ShowFrame$2.class
.........\.....\.......\.......\ShowFrame$3.class
.........\.....\.......\.......\ShowFrame$4.class
.........\.....\.......\.......\ShowFrame$5.class
.........\.....\.......\.......\ShowFrame$6.class
.........\.....\.......\.......\ShowFrame$7.class
.........\.....\.......\.......\ShowFrame.class
.........\.....\.......\.......\Studentinfo.class
.........\.....\.......\.......\UtilText.class
.........\build.xml
.........\dist
.........\....\lib
.........\....\...\mysql-connector-java-3.1.13-bin.jar
.........\....\...\swing-layout-1.0.jar
.........\....\...\toplink-essentials-agent.jar
.........\....\...\toplink-essentials.jar
.........\....\README.TXT
.........\....\StudentMS.jar
.........\manifest.mf
.........\nbproject
.........\.........\build-impl.xml
.........\.........\genfiles.properties
.........\.........\private
.........\.........\.......\private.properties
.........\.........\.......\private.xml
.........\.........\project.properties
.........\.........\project.xml
.........\src
.........\...\META-INF
.........\...\........\persistence.xml
.........\...\........\Student.dbschema
.........\...\sql
.........\...\...\student1.sql
.........\...\student
.........\...\.......\Account.java
.........\...\.......\ActionMethod.java
.........\...\.......\AddFrame.form
.........\...\.......\AddFrame.java
.........\...\.......\DbConn.java
.........\...\.......\LoginFrame.form
.........\...\.......\LoginFrame.java
.........\...\.......\MainFrame.form
.........\...\.......\MainFrame.java
.........\...\.......\ModifyFrame.form
.........\...\.......\ModifyFrame.java
.........\...\.......\SetPwdFrame.form
.........\...\.......\SetPwdFrame.java
.........\...\.......\ShowFrame.form
.........\...\.......\ShowFrame.java
.........\...\.......\Studentinfo.java
.........\...\.......\UtilText.java
.........\test

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