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 getMapOnlyValue(Map<? extends Object, T> map) {
    if (map.size() != 1) {
        throw new IllegalArgumentException("Can't get map only value, it has " + map.size() + " elements");
    }/*from w w  w  .j  a v a2  s  .co m*/
    return map.values().iterator().next();
}

From source file:Main.java

static void checkColors(int[] colors) {
    if (colors == null || colors.length == 0)
        throw new IllegalArgumentException("You must provide at least 1 color");
}

From source file:Main.java

public static void isTrue(boolean condition, String message) {
    if (!condition) {
        throw new IllegalArgumentException(message);
    }// ww w  .j av a  2s .  co  m
}

From source file:Main.java

static void checkPositiveOrZero(float number, String name) {
    if (number < 0.0F)
        throw new IllegalArgumentException(
                String.format("%s %d must be positive", new Object[] { name, Float.valueOf(number) }));
}

From source file:Main.java

public static int getDaysInMonth(int month, int year) {
    switch (month) {
    default://from   w  w w.  j  a  v a  2  s .com
        throw new IllegalArgumentException("Invalid Month");
    case 0:
    case 2:
    case 4:
    case 6:
    case 7:
    case 9:
    case 11:
        return 31;
    case 3:
    case 5:
    case 8:
    case 10:
        return 30;
    case 1:
        if (year % 4 == 0)
            return 29;
        return 28;
    }
}

From source file:Main.java

static void assertValidEventType(String eventType) throws IllegalArgumentException {
    if (eventType == null || eventType == "") {
        throw new IllegalArgumentException("Event Type is invalid");
    }//from www  . ja v a 2s. c  om
}

From source file:Main.java

static void checkColors(int[] colors) {
    if ((colors == null) || (colors.length == 0))
        throw new IllegalArgumentException("You must provide at least 1 color");
}

From source file:Main.java

public static float roundFloat(Float v, int scale) {

    if (scale < 0) {

        throw new IllegalArgumentException(

                "The scale must be a positive integer or zero");

    }//from  w  w w  .ja va2s . c  o m

    BigDecimal b = new BigDecimal(Float.toString(v));

    BigDecimal one = new BigDecimal("1");

    return b.divide(one, scale, BigDecimal.ROUND_HALF_UP).floatValue();

}

From source file:Main.java

public static Context getContext() {
    if (context == null)
        throw new IllegalArgumentException("context cannot be null!");
    return context;
}

From source file:Main.java

public static boolean isSameDay(Calendar cal1, Calendar cal2) {
    if (cal1 == null || cal2 == null)
        throw new IllegalArgumentException("The dates must not be null");
    return (cal1.get(Calendar.ERA) == cal2.get(Calendar.ERA)
            && cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR)
            && cal1.get(Calendar.DAY_OF_YEAR) == cal2.get(Calendar.DAY_OF_YEAR));
}