Java String Upper Case toUppercaseAndUnderscore(String string)

Description

to Uppercase And Underscore

License

Apache License

Declaration

public static String toUppercaseAndUnderscore(String string) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

public class Main {
    public static String toUppercaseAndUnderscore(String string) {
        StringBuilder result = new StringBuilder();
        boolean lastWasLowerCase = false;

        for (char i : string.toCharArray()) {
            if (Character.isUpperCase(i)) {
                if (lastWasLowerCase) {
                    result.append("_");
                }//from  ww w . j  a  v a 2 s.c om
            }
            result.append(Character.toUpperCase(i));
            lastWasLowerCase = Character.isLowerCase(i);
        }

        return result.toString();
    }
}

Related

1. toUpperCase(String value)
2. toUpperCase(String[] header)
3. toUpperCase(String[] list)
4. toUpperCase(String[] source)
5. toUpperCase(StringBuffer buf)
6. toUpperCaseArray(String[] source, String[] target)
7. toUpperCaseAscii(String s)
8. toUpperCaseAt(String oldString, int index)
9. toUpperCaseAtFirstChar(String string)