Locking the Width of a Column in a JTable Component

 

import javax.swing.JTable;
import javax.swing.table.TableColumn;

public class Main {
  public static void main(String[] argv) throws Exception {
    int rows = 3;
    int cols = 3;
    JTable table = new JTable(rows, cols);

    TableColumn col = table.getColumnModel().getColumn(0);
    col.setMinWidth(100);
    col.setMaxWidth(100);
    col.setPreferredWidth(100);

  }
}

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Locking the Width of a Column in a JTable Component : Table Column « Swing JFC « Java

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