Java String Starts Wtih startsWith(String source, String target, boolean caseSensitive)

Description

starts With

License

Open Source License

Declaration

public static boolean startsWith(String source, String target,
            boolean caseSensitive) 

Method Source Code

//package com.java2s;
/* MarcWorx MARC Library - Utilities for manipulation of MARC records
 Copyright (C) 2013  Todd Walker, Talwood Solutions

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.//from   w w  w. ja  v  a 2 s. c  om

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    public static boolean startsWith(String source, String target,
            boolean caseSensitive) {
        boolean result = false;
        if (!isEmpty(source) && !isEmpty(target)
                && source.length() >= target.length()) {
            if (caseSensitive) {
                result = target
                        .equals(source.substring(0, target.length()));
            } else {
                result = target.equalsIgnoreCase(source.substring(0,
                        target.length()));
            }
        }
        return result;
    }

    public static boolean isEmpty(String str) {
        return (str == null || str.length() == 0);
    }

    public static int length(String source) {
        int result = 0;
        if (isNotEmpty(source)) {
            result = source.length();
        }
        return result;
    }

    public static boolean equals(String source, String target,
            boolean caseSensitive) {
        boolean result = false;
        if (isEmpty(source) && isEmpty(target)) {
            result = true;
        } else if (!isEmpty(source) && !isEmpty(target)) {
            if (caseSensitive) {
                result = target.equals(source);
            } else {
                result = target.equalsIgnoreCase(source);
            }
        }
        return result;
    }

    public static String substring(String source, int offset, int dataLength) {
        StringBuilder sb = new StringBuilder();
        if (!isEmpty(source) && source.length() >= offset + dataLength) {
            sb.append(source.substring(offset, offset + dataLength));
        }
        return sb.toString();
    }

    public static boolean isNotEmpty(String str) {
        return !isEmpty(str);
    }
}

Related

1. startsWith(String s, String prefix)
2. startsWith(String s, String start)
3. startsWith(String s, String start)
4. startsWith(String s1, String s2)
5. startsWith(String self, String pattern)
6. startsWith(String str, char c)
7. startsWith(String str, char prefix)
8. startsWith(String str, char prefix)
9. startsWith(String str, String mark, int paramInt)