String str = "Hello"; int length = str.length(); System.out.println("Length of the string is: " + length); 复制代码 如果不将String.length()方法的返回值赋给一个变量或者直接打印输出,而是单独使用该方法,会导致编译错误。例如: String str = "Hello"; str.length(); // 编译错误:The method...
Java.Lang Assembly: Mono.Android.dll Returns the length of this string. C# [Android.Runtime.Register("length","()I","")]publicintLength(); Returns Int32 the length of the sequence of characters represented by this object. Implements ...
(1)、length()和capacity() 一个StringBuffer当前长度可通过length()方法得到,而整个可分配空间通过capacity()方法得到。 (2)、ensureCapacity() 设置缓冲区的大小 void ensureCapacity(int capacity) (3)、setLength() 设置缓冲区的长度 void setLength(int len) (4)、charAt()和setCharAt() char charAt(int wh...
Example: Java String length() Method The following example shows the usage of java String() method. public class Example { public static void main(String[] args) { String str = "example.com"; // Get the length of str. int len = str.length(); System.out.println(); System.out.printl...
length()方法:获取字符的个数,字符串的长度; indexOf()方法:获取字符/子串在字符串对象中第一次出现的索引; lastIndexOf()方法:获取字符/子串在字符串对象中最后一次出现的索引; substring()方法:截取指定范围内的子串; publicclassStringMethod01{ publicstaticvoidmain(String[] args){ ...
下面是一个示例代码,演示了如何测试Java中方法参数的限制: publicclassStringParameterLimit{publicstaticvoidmain(String[]args){StringlongString=generateLongString();System.out.println("String length: "+longString.length());testMethod(longString);}publicstaticvoidtestMethod(Stringparam){System.out.println("...
limiting the maximum size of the generated Java Virtual Machine code for any method, instance initialization method, or static initializer (the size of any code array) to 65534 bytes 如果方法的Java虚拟机代码恰好是65535字节长,并且以一条1字节长的指令结束,那么该指令就不能被异常处理程序保护。编译器...
java中数组是没有length()方法的，只有length属性，数组array.length返回的是该数组的长度。字符串String是有length()方法的，str.length()返回的是该字符串的长度。
JniEnvironment.Strings.GetStringLength(JniObjectReference) MethodReference Feedback DefinitionNamespace: Java.Interop Assembly: Java.Interop.dll C# 複製 public static int GetStringLength(Java.Interop.JniObjectReference stringInstance); Parameters stringInstance JniObjectReference Returns Int32 Remarks ...
Java.Interop Assembly: Java.Interop.dll C# publicstaticintGetStringLength(Java.Interop.JniObjectReference stringInstance); Parameters stringInstance JniObjectReference Returns Int32 Remarks Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used...