Java.Lang Assembly: Mono.Android.dll Deletes a sequence of characters specified bystartandend. C# [Android.Runtime.Register("delete","(II)Ljava/lang/StringBuilder;","")]publicJava.Lang.StringBuilderDelete(intstart,intend); Parameters start ...
其中,insert方法也是调用了expandCapacity方法来实现“扩容”特性的,此处就不在赘述了。 接下来,分析下delete(int start, int end)方法,代码如下: publicAbstractStringBuilderdelete(intstart,intend){if(start <0)thrownewStringIndexOutOfBoundsException(start);if(end > count) end = count;if(start > end)thro...
清空有3种方法: 1)新生成一个,旧的由系统自己主动回收 2)使用delete 3)使用setLength 将三种方法循环1000万次,代码: 1.public class sbbm { 2. 3. static String a; 4. static long time ; 5. public static void main( String[] args ) throws Exception { 6. 7. StringBuilder sb = new StringBu...
StringBuilderStringBuilder.delete(int start, int end) StringBuilderStringBuilder.deleteCharAt(int index) StringBuilderStringBuilder.insert(int offset, boolean b) StringBuilderStringBuilder.insert(int offset, char c) StringBuilderStringBuilder.insert(int offset, char[] str) ...
Java StringBuilder 方法/步骤 1 常用API1:java.lang.StringBuilder的append()方法，这最常用。就不多说常用API2:在new StringBuilder时添加内容。这个API可以 让代码更简洁 2 常用API3:java.lang.StringBuilder的substring可以很方便的对字符串进行截取 3 常用API4:java.lang.StringBuilder的delete可以方便的字符串进行...
I'm using aStringBuilderin a loop and every x iterations I want to empty it and start with an emptyStringBuilder, but I can't see any method similar to the .NETStringBuilder.Clearin the documentation, just thedeletemethod which seems overly complicated.我在循环中使用StringBuilder,每隔x次迭代,...
buffer.delete(0,buffer.length()); System.out.println("清空內容後,buffer == "+buffer); 1. 2. 3. StringBuffer的替换功能 我们把world替换成“节日快乐” StringBufferbuffer=newStringBuffer("hello world java"); buffer.replace(6,11,"节日快乐"); ...
StringBuffer delete(int start,int end):删除指定位置的内容 StringBuffer replace(int start, int end, String str):把[start,end)位置替换为str StringBuffer insert(int offset, xxx):在指定位置插入xxx StringBuffer reverse() :把当前字符序列逆转 ...
public StringBuilder delete(int start, int end) 删除此序列的子字符串中的字符。 子字符串从指定的start开始,并且如果不存在这样的字符,则扩展到索引end - 1处的字符或序列的末尾。 如果start等于end ,则不进行任何更改。 参数 start - 起始索引,包括在内。 end - 结束索引,独占。 结果 这个对象...
delete public StringBuilder delete(int start, int end) Removes the characters in a substring of this sequence. The substring begins at the specified start and extends to the character at index end - 1 or to the end of the sequence if no such character exists. If start is equal to end, ...