String substring = img.substring(img.lastIndexOf("/") + 1); 1. 2. 3. public class StringUtils extends org.apache.commons.lang3.StringUtils { /** 空字符串 */ private static final String NULLSTR = ""; /** 下划线 */
具体的代码如下所示: Stringstr="Hello World";charlastChar=str.charAt(str.length()-1);charsecondLastChar=str.charAt(str.length()-2);StringlastTwoChars=String.valueOf(secondLastChar)+String.valueOf(lastChar);System.out.println(lastTwoChars); 1. 2. 3. 4. 5. 上述代码首先定义了一个字符串s...
char ch = "棋哥".charAt(0); /***将其他数据类型转换为字符串类型方法1***/ String strb1 = String.valueOf(bool); //将布尔类型转换为字符串类型 String stri1 = String.valueOf(integer); //将整形转换为字符串类型 String strl1 = String.valueOf(LongInt); //将长整型转换为字符串类型 String...
publicclassStringDemo{publicstaticvoidmain(Stringargs[]){char[]helloArray={'r','u','n','o','o','b'};StringhelloString=newString(helloArray);System.out.println(helloString);}} 以上实例编译运行结果如下: runoob 注意:String 类是不可改变的,所以你一旦创建了 String 对象,那它的值就无法改变了...
java中String的常用方法 1、length()字符串的长度 例:char chars[]={'a','b'.'c'}; String s=new String(chars); int len=s.length(); 2、charAt()截取一个字符 例:char ch; ch="abc".charAt(1); 返回'b' 3、 getChars()截取多个字符 ...
if (anObject instanceof String) { // 将anObject向下转型为String类型对象 String anotherString = (String)anObject;int n = value.length;// 3. this和anObject两个字符串的长度是否相同，是继续比较，否则返回false if (n == anotherString.value.length) { char v1[] = value;char v2[] = another...
public void getChars(int start, int end, char[] destination, int position)Parameter ValuesParameterDescription start Required. The position in the string of the first character to be copied. end Required. The position in the string after the last character to be copied. destination Required. ...
byte[] getBytes(String charsetName)使用指定的字符集将此String编码为byte序列,并将结果存储到一个新的byte数组中。 14、复制到目标字符数组 void 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。
[Android.Runtime.Register("getChars","(II[CI)V","")]publicvoidGetChars(intsrcBegin,intsrcEnd,char[]? dst,intdstBegin); Parameters srcBegin Int32 index of the first character in the string to copy. srcEnd Int32 index after the last character in the string to copy. ...
StringDemo.java 文件代码: 代码语言:txt AI代码解释 public class StringDemo{ public static void main(String args[]){ char[] helloArray = { 'r', 'u', 'n', 'o', 'o', 'b'}; String helloString = new String(helloArray); System.out.println( helloString ); } } ...