в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

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2010-05-31T14:47:53Z

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== StringUtils: abbreviate(String str, int len) ==



<source lang="java">
/*
1) Abbreviate Once upon a time >>>Once upon... * */
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// String can be max 12 chars including the ...
System.out.println("1) Abbreviate Once upon a time >>>"
+ StringUtils.abbreviate("Once upon a time ", 12));
}
}

</source>



== StringUtils: chomp(String str, String separator) ==



<source lang="java">
/*
3) Chomp END >>>A test String
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {

// Remove the specified string at the end of String
System.out.println("3) Chomp END >>>" + StringUtils.chomp("A test String END", "END"));
}
}

</source>



== StringUtils: containsNone(String str, String invalidChars) ==



<source lang="java">
/*
14) Check that ABCD contains none of !@#$%^&* >>>true
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// Check that a string does not contain any of these characters !@#$%^&*
System.out.println("14) Check that ABCD contains none of !@#$%^&* >>>"
+ StringUtils.containsNone("ABCD", "!@#$%^&*"));
}
}

</source>



== StringUtils: containsOnly(String str, String validChars) ==



<source lang="java">
/*
4) Check if 643287460 contains only 0123456789 >>>true
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// Check if string contains only a specified set of characters. Return
// boolean
System.out.println("4) Check if 643287460 contains only 0123456789 >>>"
+ StringUtils.containsOnly("643287460", "0123456789"));
}
}

</source>



== StringUtils: defaultString(String str) ==



<source lang="java">
/*
6) Return default string >>>****
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {

// Takes Object input and returns Empty String if null.
System.out.println("6) Return default string >>>" + "**" + StringUtils.defaultString(null)
+ "**");
}
}

</source>



== StringUtils: equals(String arg0, String arg1) ==



<source lang="java">
/*
StringUtils.equals(String arg0, String arg1)
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// Compare Strings...No NullPointer Exception!
System.out.println("12) Comapre null and null >>>" + StringUtils.equals(null, null));
}
}

</source>



== StringUtils: indexOfDifference(String str1, String str2) ==



<source lang="java">
/*
2) Index Of Difference between ABCXYZ and ABCPQR >>>3
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// Returns index where the Strings start to differ
System.out.println("2) Index Of Difference between ABCXYZ and ABCPQR >>>"
+ StringUtils.indexOfDifference("ABCXYZ", "ABCPQR"));
}
}

</source>



== StringUtils: join(Object[] array, String separator) ==



<source lang="java">
/*
7) Join Strings using separator >>>AB$#$CD$#$EF
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// Join all Strings in the Array into a Single String, separated by $#$
System.out.println("7) Join Strings using separator >>>"
+ StringUtils.join(new String[] { "AB", "CD", "EF" }, "$#$"));
}
}

</source>



== StringUtils: reverse(String str) ==



<source lang="java">
/*
9) Reverse >>>ESREVER
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// Reverse a String
System.out.println("9) Reverse >>>" + StringUtils.reverse("REVERSE"));
}
}

</source>



== StringUtils: split(String str, String separatorChars) ==



<source lang="java">
/*
0) AB
1) CD
2) EF
3) GH
* */
import org.apache.rumons.lang.StringUtils;
public class SplitString {
public static void main(String[] args) {
//Split a String into an Array using # as seperator.
String [] splitArr=StringUtils.split("AB#CD#EF#GH", "#");

for(int i=0; i<splitArr.length; i++ ) {
System.out.println( i + ") "+ splitArr[i]);
}
}
}

</source>



== StringUtils: stripToEmpty(String str) ==



<source lang="java">
/*
13) Strip whitespace >>>ABCD
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// Strip whitespace from start and end of the string.
// If null returns empty string
System.out.println("13) Strip whitespace >>>" + StringUtils.stripToEmpty(" ABCD "));
}
}

</source>



== StringUtils: substring(String str, int start, int end) ==



<source lang="java">
/*
) Substring >>>UBST
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {

// SubString
System.out.println("8) Substring >>>" + StringUtils.substring("SUBSTRING", 1, 5));
}
}

</source>



== StringUtils: trim(String str) ==



<source lang="java">
/*
10) Trim String. No NullPointerException >>>null
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// No NullPointer Exception even if null!
System.out.println("10) Trim String. No NullPointerException >>>" + StringUtils.trim(null));
}
}

</source>



== StringUtils: trimToEmpty(String str) ==



<source lang="java">
/*
11) Empty String >>><<<
*/
import org.apache.rumons.lang.StringUtils;
public class StringUtilsTrial {
public static void main(String[] args) {
// If string is null, empty string returned. Else returns trimmed string
System.out.println("11) Empty String >>>" + StringUtils.trimToEmpty(null) + "<<<");
}
}

</source>

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Java by API/org.apache.commons.lang/StringUtils - История изменений

в 17:43, 31 мая 2010

Admin: 1 версия