@method copyOf(char[] original, int newLength) 复制指定的数组,截取或用 null 字符填充(如有必要),以使副本具有指定的长度。 @method getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin) 将字符从此字符串复制到目标字符数组。 public String concat(String str) { int otherLen = str.length...
Return Value concat() methodString representing the concatenation of this object's characters with the string argument's characters.Return Value Type: stringExample: Java String concat() Methodpublic class Example { public static void main(String[] args) { String str1 = "PHP Exercises and "; ...
@methodgetChars(intsrcBegin,intsrcEnd,char[] dst,intdstBegin) 将字符从此字符串复制到目标字符数组。publicStringconcat(String str){intotherLen=str.length();if(otherLen ==0) {returnthis; }intlen=value.length;charbuf[] = Arrays.copyOf(value, len + otherLen); str.getChars(buf, len);return...
源码中对String中+操作符的描述如下: The Java language provides special supportforthestringconcatenationoperator( + ),andforconversionofother objectstostrings.Stringconcatenationisimplemented through the StringBuilder(orStringBuffer)classandits append method. 简单的概括下:String本身是不变的对象,但是string的+号...
Concatenates the specified string to the end of this string. C# [Android.Runtime.Register("concat","(Ljava/lang/String;)Ljava/lang/String;","")]publicstringConcat(stringstr); Parameters str String theStringthat is concatenated to the end of thisString. ...
@method copyOf(char[] original, int newLength) 复制指定的数组,截取或用 null 字符填充(如有必要),以使副本具有指定的长度。 @method getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin) 将字符从此字符串复制到目标字符数组。 public String concat(String str) { ...
()Ljava/time/LocalTime; 6: astore_2 7: aload_1 8: aload_2 9: invokestatic #15 // Method java/lang/String.valueOf:(Ljava/lang/Object;)Ljava/lang/String; 12: invokedynamic #21, 0 // InvokeDynamic #0:makeConcatWithConstants:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String; 17...
@method getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin) 将字符从此字符串复制到目标字符数组。 public String concat(String str) { int otherLen = str.length(); if (otherLen == 0) { return this; } int len = value.length; char buf[] = Arrays.copyOf(value, len + other...
@method copyOf(char[] original, int newLength) 复制指定的数组,截取或用 null 字符填充(如有必要),以使副本具有指定的长度。 @method getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin) 将字符从此字符串复制到目标字符数组。 public String concat(String str) { ...