Example usage for java.lang CharSequence charAt

Introduction

In this page you can find the example usage for java.lang CharSequence charAt.

Prototype

char charAt(int index);

Source Link

Document

Returns the char value at the specified index.

Usage

From source file:Main.java

public static CharSequence trimTrailingWhitespace(CharSequence text) {
    while (text.charAt(text.length() - 1) == '\n') {
        text = text.subSequence(0, text.length() - 1);
    }/*  ww w.j ava2  s  .c om*/

    return text;
}

From source file:Main.java

public static boolean lastCharIsOperator(CharSequence text) {
    char last_char = text.charAt(text.length() - 1);
    return (last_char == '-' || last_char == '*' || last_char == '/' || last_char == '+');
}

From source file:Main.java

/**
 * Checks whether or not a phone number is a private caller or not.
 *//*w  ww .j  a  va 2  s  .co  m*/
public static boolean isPrivateCaller(CharSequence charsequence) {
    return TextUtils.isEmpty(charsequence) || '-' == charsequence.charAt(0);
}

From source file:Main.java

private static String getAppropriateEncoding(CharSequence contents) {
    for (int i = 0; i < contents.length(); i++) {
        if (contents.charAt(i) > 0xFF) {
            return "UTF-8";
        }//  w ww  . j av a2s.  co m
    }
    return null;
}

From source file:Main.java

private static int getEndIndex(CharSequence input) {
    int index = input.length() - 1;
    while (Character.isWhitespace(input.charAt(index))) {
        --index;/*w  w w . j  a  v  a2  s  . c  o  m*/
        if (index < 0) {
            break;
        }
    }
    return index;
}

From source file:Main.java

private static char getShortyType(CharSequence type) {
    if (type.length() > 1) {
        return 'L';
    }/*from   w  w w . j  a v  a2 s. c  o m*/
    return type.charAt(0);
}

From source file:Main.java

/**
 * Convert the hex string to the integer value.
 * @param str// w ww.  j  ava  2  s  . com
 * @return the integer value for the specified hex string
 */
public static int intFromHexString(CharSequence str) {
    int n = 0;
    for (int i = 0; i < str.length(); i++) {
        char c = str.charAt(i);
        int v = c <= '9' ? c - '0' : c - 'a' + 10;
        n <<= 4;
        n |= (v & 0x0f);
    }
    return n;
}

From source file:Main.java

private static int getStartIndex(CharSequence input) {
    int length = input.length();
    int index = 0;
    while (Character.isWhitespace(input.charAt(index))) {
        ++index;//from   ww  w  . ja va  2s  .com
        if (index >= length) {
            break;
        }
    }
    return index;
}

From source file:Main.java

private static boolean isUpperCase(CharSequence sequence) {
    for (int i = 0; i < sequence.length(); i++) {
        if (Character.isLowerCase(sequence.charAt(i)))
            return false;
    }//ww  w .ja  v  a 2 s .  c  o m

    return true;
}

From source file:Main.java

private static String guessAppropriateEncoding(CharSequence contents) {
    // Very crude at the moment
    for (int i = 0; i < contents.length(); i++) {
        if (contents.charAt(i) > 0xFF) {
            return "UTF-8";
        }/*from   w w w.  ja va 2  s  .  c  o m*/
    }
    return null;
}