Example usage for java.lang IllegalArgumentException IllegalArgumentException

Introduction

In this page you can find the example usage for java.lang IllegalArgumentException IllegalArgumentException.

Prototype

public IllegalArgumentException(Throwable cause)

Source Link

Document

Constructs a new exception with the specified cause and a detail message of (cause==null ?

Usage

From source file:Main.java

public static <T> T getSingle(List<T> collection) {
    checkIsNull(collection);/*from  ww  w.ja  va2s  .co m*/

    if (collection.size() != 1) {
        throw new IllegalArgumentException("The supplied collection must contain exactly one item.");
    }

    return getFirst(collection);
}

From source file:Main.java

public static void setViewInvisible(View view) {
    if (view != null) {
        view.setVisibility(View.INVISIBLE);
    } else {//  www  .j a va2 s  .co  m
        throw new IllegalArgumentException("A view is null in your parameter.");
    }
}

From source file:Main.java

public static final int parseIPAddress(String address) {
    if (TextUtils.isEmpty(address))
        throw new IllegalArgumentException("address cannot be null or empty");
    String[] tokens = address.split("\\.");
    boolean isOk = true;
    int ip = 0;//from   w  w  w  .  j av a 2  s .co  m
    if (tokens.length == 4) {
        for (int i = 0; i < 4; i++) {
            try {
                short num = Short.parseShort(tokens[i]);
                if (num < 0 || num > 255) {
                    isOk = false;
                    break;
                }
                ip |= (num << (8 * i));
            } catch (NumberFormatException ex) {
                isOk = false;
                break;
            }
        }
    } else
        isOk = false;

    if (!isOk)
        throw new IllegalArgumentException("address is not in the form X.X.X.X, with X in the range 0-255");

    return ip;
}

From source file:Main.java

public static String getNumberRadim(int n) {
    if (n < 1 || n > 10) {
        throw new IllegalArgumentException("cannot random " + n + " bit number");
    }/*from   w  w  w  .  j ava 2  s  .  c  o  m*/
    Random ran = new Random();
    if (n == 1) {
        return String.valueOf(ran.nextInt(10));
    }
    int bitField = 0;
    char[] chs = new char[n];
    for (int i = 0; i < n; i++) {
        while (true) {
            int k = ran.nextInt(10);
            if ((bitField & (1 << k)) == 0) {
                bitField |= 1 << k;
                chs[i] = (char) (k + '0');
                break;
            }
        }
    }
    return new String(chs);
}

From source file:Main.java

public static void checkKeyEventId(int id) {
    if (id != KeyEvent.KEY_TYPED && id != KeyEvent.KEY_PRESSED && id != KeyEvent.KEY_RELEASED) {
        throw new IllegalArgumentException("Invalid key event id");
    }//from  ww  w  .ja va2  s  .co  m
}

From source file:Main.java

public static void objectCopy(Object from, Object to) throws Exception {

    if (from.getClass() != to.getClass()) {
        throw new IllegalArgumentException("[objectCopy]The left and right must be same class");
    }/*from   w ww.  ja v a 2  s .c om*/
    Class<?> clz = from.getClass();
    Field[] fs = clz.getDeclaredFields();
    for (int i = 0; i < fs.length; i++) {
        Field field = fs[i];

        field.setAccessible(true);

        Object value = field.get(from);
        field.set(to, value);
    }
}

From source file:Main.java

public static <T> T[] subArray(T[] x, int start, int len) {
    if (start + len > x.length)
        throw new IllegalArgumentException("length + start > x.length");
    T[] out = null;/*from w ww  .jav  a  2 s . c om*/
    try {
        out = (T[]) Array.newInstance(x.getClass().getComponentType(), len);
    } catch (Exception e) {
        e.printStackTrace();
        throw new RuntimeException(e.getMessage());
    }
    System.arraycopy(x, start, out, 0, len);
    return out;
}

From source file:Main.java

public static void mergePropertiesIntoMap(Properties props, Map map) {
    if (map == null) {
        throw new IllegalArgumentException("Map must not be null");
    } else {/* w w  w . ja v  a  2s . c o  m*/
        if (props != null) {
            Enumeration en = props.propertyNames();

            while (en.hasMoreElements()) {
                String key = (String) en.nextElement();
                map.put(key, props.getProperty(key));
            }
        }

    }
}

From source file:Main.java

public final static <T> void add(ArrayList<T> origin, ArrayList<T> list) {
    if (origin == null) {
        throw new IllegalArgumentException("");
    }//from  w  w w .  j a  v  a 2s .  c  om

    if (list == null || list.size() == 0) {
        return;
    }

    origin.addAll(list);
}

From source file:Main.java

public static Point toPoint(Node n) {
    if (!n.getNodeName().equals("center")) {
        throw new IllegalArgumentException(n.getNodeName());
    }/*from   w w  w .j  ava 2s.com*/
    NamedNodeMap map = n.getAttributes();
    int x = Integer.parseInt(map.getNamedItem("x").getNodeValue());
    int y = Integer.parseInt(map.getNamedItem("y").getNodeValue());
    return new Point(x, y);
}