import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;

public class Main {
    
    public static void main(String[] args) throws Exception {
        Class.forName("oracle.jdbc.driver.OracleDriver");
        
        String databaseURL = "";
        String user = "";
        String password = "";
        String schema = "";
        
        Connection conn = DriverManager.getConnection(databaseURL, user, password);
        try {
            DatabaseMetaData dmd = conn.getMetaData();
            ResultSet rs;
            
            rs = dmd.getTables(null, schema, "%", new String[] { "TABLE" });
            while (rs.next()) {
                System.out.println(rs.getString("TABLE_SCHEM") + "." + rs.getString("TABLE_NAME"));
            }
        } finally {
            conn.close();
        }
    }
}