Java String Starts Wtih startsWith(final CharSequence str, final CharSequence prefix)

Description

starts With

License

Apache License

Declaration

public static boolean startsWith(final CharSequence str, final CharSequence prefix) 

Method Source Code

//package com.java2s;
/*//  www .j ava2 s  .c o  m
 * Copyright (c) 2014  Haixing Hu
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

public class Main {
    public static boolean startsWith(final CharSequence str, final CharSequence prefix) {
        return startsWith(str, 0, str.length(), prefix);
    }

    public static boolean startsWith(final CharSequence str, final int startIndex, final CharSequence prefix) {
        return startsWith(str, startIndex, str.length(), prefix);
    }

    public static boolean startsWith(final CharSequence str, final int startIndex, final int endIndex,
            final CharSequence prefix) {
        final int prefixLen = prefix.length();
        if (endIndex - startIndex < prefixLen) {
            return false;
        }
        for (int i = 0; i < prefixLen; ++i) {
            if (str.charAt(startIndex + i) != prefix.charAt(i)) {
                return false;
            }
        }
        return true;
    }
}

Related

1. startsWith(CharSequence seq, String str)
2. startsWith(CharSequence source, CharSequence search)
3. startsWith(CharSequence str, char prefix)
4. startsWith(CharSequence str, CharSequence prefix)
5. startsWith(final boolean caseSensitive, final char[] text, final char[] prefix)
6. startsWith(final CharSequence target, final CharSequence prefix)
7. startsWith(final E[] array, final E[] prefix)
8. startsWith(final Object[] left, final Object[] right, final boolean equals)
9. startsWith(final String fullMethodName, final String prefix)