Example usage for javax.swing DefaultListModel ensureCapacity

Introduction

In this page you can find the example usage for javax.swing DefaultListModel ensureCapacity.

Prototype

public void ensureCapacity(int minCapacity) 

Source Link

Document

Increases the capacity of this list, if necessary, to ensure that it can hold at least the number of components specified by the minimum capacity argument.

Usage

From source file:SelectionModeDemo.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Sizing Samples");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(100);
    for (int i = 0; i < 100; i++) {
        model.addElement(Integer.toString(i));
    }//from  w w  w .  j ava  2s .co  m
    JList jlist2 = new JList(model);
    jlist2.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Sizing Samples");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(100);
    for (int i = 0; i < 100; i++) {
        model.addElement(Integer.toString(i));
    }/*from w  ww .  ja  v a  2s  .  c  o  m*/
    JList jlist2 = new JList(model);

    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);

    jlist2.ensureIndexIsVisible(50);
}

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From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int j = 0; j < 5; j++) {
        model.addElement(labels[j]);/*from  w w w  . j a va  2s.  com*/
    }
    model.trimToSize();

    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int j = 0; j < 5; j++) {
        model.addElement(labels[j]);//from w w w  . ja  v  a  2  s.com
    }
    System.out.println(model.toArray().length);

    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int j = 0; j < 5; j++) {
        model.addElement(labels[j]);/*  w ww .  ja v a  2 s . co m*/
    }
    System.out.println(model.toString());

    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Sizing Samples");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int i = 0; i < 100; i++) {
        for (int j = 0; j < 5; j++) {
            model.addElement(labels[j]);
        }//  ww w .  j a v a2  s.c  o  m
    }

    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int i = 0; i < 100; i++) {
        for (int j = 0; j < 5; j++) {
            model.addElement(labels[j]);
        }//from   ww  w  .j ava 2 s .  co m
    }
    System.out.println(model.contains("A"));

    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int i = 0; i < 100; i++) {
        for (int j = 0; j < 5; j++) {
            model.addElement(labels[j]);
        }//from   w  ww.  j  av a 2s  .c om
    }
    System.out.println(model.capacity());

    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int i = 0; i < 100; i++) {
        for (int j = 0; j < 5; j++) {
            model.addElement(labels[j]);
        }//from ww w.jav a 2 s.  c o m
    }
    System.out.println(model.isEmpty());

    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int i = 0; i < 100; i++) {
        for (int j = 0; j < 5; j++) {
            model.addElement(labels[j]);
        }/*  w  ww .  j a  v  a2 s. com*/
    }
    System.out.println(model.lastElement());

    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

---

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