TableSaw: Select specific column from a table

‘table.select’ method return new table with specific columns.

Example

Table resultedTable = table.select("FirstName", "LastName");

App.java

package com.sample.app;

import tech.tablesaw.api.IntColumn;
import tech.tablesaw.api.StringColumn;
import tech.tablesaw.api.Table;

public class App {

	public static void main(String args[]) {
		int[] empIds = { 1, 2, 3, 4, 5, 6 };
		String[] firstNames = { "Hari", "Ram", "Sowmya", "Chamu", "Swethank", "Chamu" };
		String[] lastNames = { "Krishna", "Gurram", "Maj", "Maj", "Baji", "Gurram" };

		Table table = Table.create().addColumns(IntColumn.create("Employee Id", empIds))
				.addColumns(StringColumn.create("FirstName", firstNames))
				.addColumns(StringColumn.create("LastName", lastNames));

		Table resultedTable = table.select("FirstName", "LastName");

		System.out.println(table.print());
		System.out.println("\n" + resultedTable.print());

	}
}

Output

Employee Id  |  FirstName  |  LastName  |

------------------------------------------

           1  |       Hari  |   Krishna  |

           2  |        Ram  |    Gurram  |

           3  |     Sowmya  |       Maj  |

           4  |      Chamu  |       Maj  |

           5  |   Swethank  |      Baji  |

           6  |      Chamu  |    Gurram  |

 FirstName  |  LastName  |

--------------------------

      Hari  |   Krishna  |

       Ram  |    Gurram  |

    Sowmya  |       Maj  |

     Chamu  |       Maj  |

  Swethank  |      Baji  |

     Chamu  |    Gurram  |

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