package
sean.study.jakarta.commons.lang;
import
org.apache.commons.lang.StringUtils;
public
class
StringUtilsAndWordUtilsUsage {
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public
static
void
main(String[] args) {
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聽聽聽聽聽聽聽 // data setup
聽聽聽聽聽聽聽 String str1 = "";
聽聽聽聽聽聽聽 String str2 = " ";
聽聽聽聽聽聽聽 String str3 = "\t";
聽聽聽聽聽聽聽 String str4 = null;
聽聽聽聽聽聽聽 String str5 = "123";
聽聽聽聽聽聽聽 String str6 = "ABCDEFG";
聽聽聽聽聽聽聽 String str7 = "It feels good to use
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聽聽聽聽聽聽聽 // check for empty strings
聽聽聽聽聽聽聽 System.out.println("==============================");
聽聽聽聽聽聽聽 System.out.println("Is str1 blank? " + StringUtils.isBlank(str1));
聽聽聽聽聽聽聽 System.out.println("Is str2 blank? " + StringUtils.isBlank(str2));
聽聽聽聽聽聽聽 System.out.println("Is str3 blank? " + StringUtils.isBlank(str3));
聽聽聽聽聽聽聽 System.out.println("Is str4 blank? " + StringUtils.isBlank(str4));
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聽聽聽聽聽聽聽 // check for numerics
聽聽聽聽聽聽聽 System.out.println("==============================");
聽聽聽聽聽聽聽 System.out.println("Is str5 numeric? " + StringUtils.isNumeric(str5));
聽聽聽聽聽聽聽 System.out.println("Is str6 numeric? " + StringUtils.isNumeric(str6));
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聽聽聽聽聽聽聽 // reverse strings / whole words
聽聽聽聽聽聽聽 System.out.println("==============================");
聽聽聽聽聽聽聽 System.out.println("str6: " + str6);
聽聽聽聽聽聽聽 System.out.println("str6 reversed: " + StringUtils.reverse(str6));
聽聽聽聽聽聽聽 System.out.println("str7: " + str7);
聽聽聽聽聽聽聽 String str8 = StringUtils.chomp(str7);
聽聽聽聽聽聽聽 str8 = StringUtils.reverseDelimited(str8, ' ');
聽聽聽聽聽聽聽 System.out.println("str7 reversed whole words : \r\n" + str8);
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聽聽聽聽聽聽聽 // build header (useful to print log messages that are easy to locate)
聽聽聽聽聽聽聽 System.out.println("==============================");
聽聽聽聽聽聽聽 System.out.println("print header:");
聽聽聽聽聽聽聽 String padding = StringUtils.repeat("=", 50);
聽聽聽聽聽聽聽 String msg = StringUtils.center(" Customised Header ", 50, "%");
聽聽聽聽聽聽聽 Object[] raw = new Object[]{padding, msg, padding};
聽聽聽聽聽聽聽 String header = StringUtils.join(raw, "\r\n");
聽聽聽聽聽聽聽 System.out.println(header);
聽聽聽 }
}
杈撳嚭鐨勭粨鏋滃涓嬶細
==============================
Is str1 blank? true
Is str2 blank? true
Is str3 blank? true
Is str4 blank? true
==============================
Is str5 numeric? true
Is str6 numeric? false
==============================
str6: ABCDEFG
str6 reversed: GFEDCBA
str7: It feels good to use Jakarta Commons.
str7 reversed whole words :
Commons.
==============================
print header:
==================================================
%%%%%%%%%%%%%%% Customised Header %%%%%%%%%%%%%%%%
==================================================
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StringUtils
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]]>