9行代码

private static void rangeCheck(int arrayLen, int fromIndex, int toIndex) {
    if (fromIndex > toIndex)
        throw new IllegalArgumentException("fromIndex(" + fromIndex +
             ") > toIndex(" + toIndex+")");
    if (fromIndex < 0)
        throw new ArrayIndexOutOfBoundsException(fromIndex);
    if (toIndex > arrayLen)
        throw new ArrayIndexOutOfBoundsException(toIndex);
}

37个包

java.awt.font

java.beans

java.io

java.lang

java.lang.annotation

java.lang.ref

java.lang.reflect

java.net

java.nio

java.nio.channels

java.nio.channels.spi

java.nio.charset

java.nio.charset.spi

java.security

java.security.acl

java.security.cert

java.security.interfaces

java.security.spec

java.sql

java.text

java.util

java.util.jar

java.util.logging

java.util.prefs

java.util.regex

java.util.zip

javax.crypto

javax.crypto.interfaces

javax.crypto.spec

javax.net

javax.net.ssl

javax.security.auth

javax.security.auth.callback

javax.security.auth.login

javax.security.auth.x500

javax.security.cert

javax.sql