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 int nextPowerOf2(int n) {
    if (n <= 0 || n > (1 << 30))
        throw new IllegalArgumentException("n is invalid: " + n);
    n -= 1;//from  w w  w  .  j  a  va2s  .c o  m
    n |= n >> 16;
    n |= n >> 8;
    n |= n >> 4;
    n |= n >> 2;
    n |= n >> 1;
    return n + 1;
}

From source file:Main.java

public static void checkPositiveOrZero(float number, String name) {
    if (number < 0)
        throw new IllegalArgumentException(String.format("%s %d must be positive", name, number));
}

From source file:Main.java

public static <T> T notNull(T argument, String name) {
    if (argument == null) {
        throw new IllegalArgumentException(name + " should not be null!");
    } else {/*from   ww  w. j a  va  2 s.  c o m*/
        return argument;
    }
}

From source file:Main.java

public static int factorial(int start, int end) {
    if (start < 0) {
        throw new IllegalArgumentException("x must be>=0");
    }/*from  w w w .ja  v  a 2s. c o  m*/
    if (start == end) {
        return end;
    } else if (start > end)
        return start * factorial(start - 1, end);
    else
        throw new IllegalArgumentException("start must be >= end");

}

From source file:Main.java

public static void checkReflectRorate(float degree) {
    if (degree >= 90 || degree < 0)
        throw new IllegalArgumentException("reflectDegree must be [0,90)!");
}

From source file:Main.java

public final static long getLong(byte[] buf) {
    if (buf == null) {
        throw new IllegalArgumentException("byte array is null!");
    }/*w ww  .  j ava 2  s  .  c  o  m*/
    if (buf.length > 8) {
        throw new IllegalArgumentException("byte array size > 8 !");
    }
    long r = 0;
    for (int i = 0; i < buf.length; i++) {
        r <<= 8;
        r |= (buf[i] & 0x00000000000000ff);
    }
    return r;
}

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 w  w w  . j a  v a  2  s .  c  o  m*/
}

From source file:Main.java

public static void assertTrue(boolean condition, String message) {
    if (!condition) {
        throw new IllegalArgumentException(message);
    }/*from w w  w  .  j  a  va  2s .c o  m*/
}

From source file:Main.java

public static String getFilenameFromPath(String path) {
    if (path == null) {
        throw new IllegalArgumentException("path cannot be null");
    }//from w  w  w .j a  va 2s .c  o m
    int lastIndexOf = path.lastIndexOf("/");
    if (lastIndexOf == -1) {
        return path;
    }
    return path.substring(lastIndexOf + 1, path.length());
}

From source file:Main.java

public static void checkArgument(boolean expression, Object errorMsg) {
    if (!expression)
        throw new IllegalArgumentException(String.valueOf(errorMsg));
}