Example usage for java.lang StringBuilder StringBuilder

Introduction

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

Prototype

public StringBuilder(CharSequence seq)

Source Link

Document

Constructs a string builder that contains the same characters as the specified CharSequence .

Usage

From source file:Main.java

public static String formatMac(String mac) {
    StringBuilder sb = new StringBuilder(mac);
    sb.insert(2, ":");
    sb.insert(5, ":");
    sb.insert(8, ":");
    sb.insert(11, ":");
    sb.insert(14, ":");
    return sb.toString();
}

From source file:Main.java

public static String repeat(String s, int cnt) {
    StringBuilder sb = new StringBuilder(s.length() * cnt);
    for (int i = 0; i < cnt; i++) {
        sb.append(s);// ww w .jav a 2  s  .  c  o m
    }
    return sb.toString();
}

From source file:Main.java

public static String getUserAgent() {
    StringBuilder model = new StringBuilder(android.os.Build.MODEL);
    if (model.toString().startsWith("\"")) {
        model.deleteCharAt(0);//from   w w  w  .  j  a  va2s.  c  o  m
    }
    if (model.toString().endsWith("\"")) {
        model.deleteCharAt(model.length() - 1);
    }
    return model.toString();
}

From source file:Main.java

public static String HexEncode(byte[] toencode) {
    StringBuilder sb = new StringBuilder(toencode.length * 2);
    for (byte b : toencode) {
        sb.append(Integer.toHexString((b & 0xf0) >>> 4));
        sb.append(Integer.toHexString(b & 0x0f));
    }//w w  w .  j  a va  2  s. c o m
    return sb.toString();
}

From source file:Main.java

public static String i(int[] iArr) {
    StringBuilder stringBuilder = new StringBuilder(32);
    stringBuilder.append('(');
    for (int append : iArr) {
        stringBuilder.append(append).append(',');
    }//from www  .  j  a va2s  . c o m
    stringBuilder.setCharAt(stringBuilder.length() - 1, ')');
    return stringBuilder.toString();
}

From source file:Main.java

public static String maskString(String s) {
    StringBuilder stringbuilder = new StringBuilder(s.length());
    for (int i = 0; i < s.length(); i++) {
        stringbuilder.append("*");
    }//from w  w w  .ja  va  2s. c  om

    return stringbuilder.toString();
}

From source file:Main.java

public static String encodeHex(byte[] bytes) {
    StringBuilder hex = new StringBuilder(bytes.length * 2);

    for (byte aByte : bytes) {
        if (((int) aByte & 0xff) < 0x10) {
            hex.append("0");
        }/*from  w w  w . ja va  2s  . c  o m*/
        hex.append(Integer.toString((int) aByte & 0xff, 16));
    }

    return hex.toString();
}

From source file:Main.java

public static String getPid() {
    StringBuilder pid = new StringBuilder(Build.MANUFACTURER).append(" ").append(Build.MODEL).append(" - ")
            .append(Build.VERSION.RELEASE);

    return pid.toString();
}

From source file:Main.java

public static String intToHexString(int a) {
    StringBuilder stringBuilder = new StringBuilder("");
    int v = a & 0xFF;
    String hv = Integer.toHexString(v);
    if (hv.length() < 2) {
        stringBuilder.append(0);/*from ww  w  .  ja  v  a2s. c o m*/
    }
    stringBuilder.append(hv);
    return stringBuilder.toString();
}

From source file:Main.java

public static String toDisplayString(byte[] bytes) {
    StringBuilder builder = new StringBuilder(bytes.length);
    builder.append('[');
    for (int i = 0; i < bytes.length; i++) {
        builder.append(bytes[i] + ", ");
    }//from   w w w  .j  a v  a 2 s  .  c om
    builder.append(']');
    return builder.toString();
}