visual basic 6 barcode generator The Java Library in Java

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The Java Library
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arr[j] = arr[i]; arr[i] = t; } } Systemoutprintln(arr[j]); } } }
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The output of this program is the list of words: Now aid all come country for good is men of the the their time to to As you can see from the output of this example, compareTo( ) takes into account uppercase and lowercase letters The word Now came out before all the others because it begins with an uppercase letter, which means it has a lower value in the ASCII character set If you want to ignore case differences when comparing two strings, use compareToIgnoreCase( ), as shown here: int compareToIgnoreCase(String str) This method returns the same results as compareTo( ), except that case differences are ignored You might want to try substituting it into the previous program After doing so, Now will no longer be first
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Searching Strings
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The String class provides two methods that allow you to search a string for a specified character or substring:
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indexOf( ) Searches for the first occurrence of a character or substring lastIndexOf( ) Searches for the last occurrence of a character or substring
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These two methods are overloaded in several different ways In all cases, the methods return the index at which the character or substring was found, or 1 on failure
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String Handling
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To search for the first occurrence of a character, use int indexOf(int ch) To search for the last occurrence of a character, use int lastIndexOf(int ch) Here, ch is the character being sought To search for the first or last occurrence of a substring, use int indexOf(String str) int lastIndexOf(String str) Here, str specifies the substring You can specify a starting point for the search using these forms: int indexOf(int ch, int startIndex) int lastIndexOf(int ch, int startIndex) int indexOf(String str, int startIndex) int lastIndexOf(String str, int startIndex) Here, startIndex specifies the index at which point the search begins For indexOf( ), the search runs from startIndex to the end of the string For lastIndexOf( ), the search runs from startIndex to zero The following example shows how to use the various index methods to search inside of Strings:
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// Demonstrate indexOf() and lastIndexOf() class indexOfDemo { public static void main(String args[]) { String s = "Now is the time for all good men " + "to come to the aid of their country"; Systemoutprintln(s); Systemoutprintln("indexOf(t) = " + sindexOf('t')); Systemoutprintln("lastIndexOf(t) = " + slastIndexOf('t')); Systemoutprintln("indexOf(the) = " + sindexOf("the")); Systemoutprintln("lastIndexOf(the) = " + slastIndexOf("the")); Systemoutprintln("indexOf(t, 10) = " + sindexOf('t', 10)); Systemoutprintln("lastIndexOf(t, 60) = " + slastIndexOf('t', 60)); Systemoutprintln("indexOf(the, 10) = " + sindexOf("the", 10)); Systemoutprintln("lastIndexOf(the, 60) = " + slastIndexOf("the", 60)); } }
Part II:
The Java Library
Here is the output of this program: Now is the time for all good men to come to the aid of their country indexOf(t) = 7 lastIndexOf(t) = 65 indexOf(the) = 7 lastIndexOf(the) = 55 indexOf(t, 10) = 11 lastIndexOf(t, 60) = 55 indexOf(the, 10) = 44 lastIndexOf(the, 60) = 55
Modifying a String
Because String objects are immutable, whenever you want to modify a String, you must either copy it into a StringBuffer or StringBuilder, or use one of the following String methods, which will construct a new copy of the string with your modifications complete
substring( )
You can extract a substring using substring( ) It has two forms The first is String substring(int startIndex) Here, startIndex specifies the index at which the substring will begin This form returns a copy of the substring that begins at startIndex and runs to the end of the invoking string The second form of substring( ) allows you to specify both the beginning and ending index of the substring: String substring(int startIndex, int endIndex) Here, startIndex specifies the beginning index, and endIndex specifies the stopping point The string returned contains all the characters from the beginning index, up to, but not including, the ending index The following program uses substring( ) to replace all instances of one substring with another within a string:
// Substring replacement class StringReplace { public static void main(String args[]) { String org = "This is a test This is, too"; String search = "is"; String sub = "was"; String result = ""; int i; do { // replace all matching substrings Systemoutprintln(org); i = orgindexOf(search); if(i != -1) { result = orgsubstring(0, i);
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