java.lang.ArrayIndexOutOfBoundsException Java Examples

/**
 * Copies characters from this string into the destination character
 * array.
 * <p>
 * The first character to be copied is at index {@code srcBegin};
 * the last character to be copied is at index {@code srcEnd-1}
 * (thus the total number of characters to be copied is
 * {@code srcEnd-srcBegin}). The characters are copied into the
 * subarray of {@code dst} starting at index {@code dstBegin}
 * and ending at index:
 * <blockquote><pre>
 *     dstBegin + (srcEnd-srcBegin) - 1
 * </pre></blockquote>
 *
 * @param      srcBegin   index of the first character in the string
 *                        to copy.
 * @param      srcEnd     index after the last character in the string
 *                        to copy.
 * @param      dst        the destination array.
 * @param      dstBegin   the start offset in the destination array.
 * @exception IndexOutOfBoundsException If any of the following
 *            is true:
 *            <ul><li>{@code srcBegin} is negative.
 *            <li>{@code srcBegin} is greater than {@code srcEnd}
 *            <li>{@code srcEnd} is greater than the length of this
 *                string
 *            <li>{@code dstBegin} is negative
 *            <li>{@code dstBegin+(srcEnd-srcBegin)} is larger than
 *                {@code dst.length}</ul>
 */
public void getChars(int srcBegin, int srcEnd, char dst[], int dstBegin) {
    if (dst == null) {
        throw new NullPointerException("dst == null");
    }

    if (srcBegin < 0) {
        throw new StringIndexOutOfBoundsException(this, srcBegin);
    }
    if (srcEnd > length()) {
        throw new StringIndexOutOfBoundsException(this, srcEnd);
    }

    int n = srcEnd - srcBegin;
    if (srcEnd < srcBegin) {
        throw new StringIndexOutOfBoundsException(this, srcBegin, n);
    }

    if (dstBegin < 0) {
        throw new ArrayIndexOutOfBoundsException("dstBegin < 0. dstBegin=" + dstBegin);
    }
    // dstBegin can be equal to dst.length, but only in the case where zero chars are to be
    // copied.
    if (dstBegin > dst.length) {
        throw new ArrayIndexOutOfBoundsException(
                "dstBegin > dst.length. dstBegin=" + dstBegin + ", dst.length=" + dst.length);
    }
    if (n > dst.length - dstBegin) {
        throw new ArrayIndexOutOfBoundsException(
                "n > dst.length - dstBegin. n=" + n + ", dst.length=" + dst.length
                        + "dstBegin=" + dstBegin);
    }

    getCharsNoCheck(srcBegin, srcEnd, dst, dstBegin);
}
 

/**
 * Runs the test using the specified harness.
 *
 * @param harness  the test harness (<code>null</code> not permitted).
 */
public void test(TestHarness harness)
{
    ArrayIndexOutOfBoundsException object1 = new ArrayIndexOutOfBoundsException();
    harness.check(object1 != null);
    harness.check(object1.toString(), "java.lang.ArrayIndexOutOfBoundsException");

    ArrayIndexOutOfBoundsException object2 = new ArrayIndexOutOfBoundsException("nothing happens");
    harness.check(object2 != null);
    harness.check(object2.toString(), "java.lang.ArrayIndexOutOfBoundsException: nothing happens");

    ArrayIndexOutOfBoundsException object3 = new ArrayIndexOutOfBoundsException(null);
    harness.check(object3 != null);
    harness.check(object3.toString(), "java.lang.ArrayIndexOutOfBoundsException");

    ArrayIndexOutOfBoundsException object4 = new ArrayIndexOutOfBoundsException(0);
    harness.check(object4 != null);
    harness.check(object4.toString(), "java.lang.ArrayIndexOutOfBoundsException: 0");

    ArrayIndexOutOfBoundsException object5 = new ArrayIndexOutOfBoundsException(-1);
    harness.check(object5 != null);
    harness.check(object5.toString(), "java.lang.ArrayIndexOutOfBoundsException: -1");

    ArrayIndexOutOfBoundsException object6 = new ArrayIndexOutOfBoundsException(Integer.MAX_VALUE);
    harness.check(object6 != null);
    harness.check(object6.toString(), "java.lang.ArrayIndexOutOfBoundsException: 2147483647");

}
 

/**
 * Runs the test using the specified harness.
 *
 * @param harness  the test harness (<code>null</code> not permitted).
 */
public void test(TestHarness harness)
{
    // flag that is set when exception is caught
    boolean caught = false;
    try {
        throw new ArrayIndexOutOfBoundsException("ArrayIndexOutOfBoundsException");
    }
    catch (ArrayIndexOutOfBoundsException e) {
        // correct exception was caught
        caught = true;
    }
    harness.check(caught);
}