public static void main(String args[]) { String st1 = "Welcome to JavaFolder"; System.out.println("Before replace : " +st1); String replaceString = st1.replace('W', 'e'); System.out.println(replaceString); } }
Replaces each substring of this string that matches the given regular expression with the given replacement. An invocation of this method of the form str.replaceAll(regex,repl) yields exactly the same result as the expression <blockquote> {@link java.util.regex.Pattern}.{@link java.util.regex...
Convert a string into a byte array:String myStr = "Hello"; byte[] result = myStr.getBytes(); System.out.println(result[0]); Try it Yourself »Definition and UsageThe getBytes() method converts a string into an array of bytes.
1、length() 字符串的长度 例:char chars[]={'a','b'.'c'}; String s=new String(chars); i nt 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 例:String s="this is a demo of the getChars method."; char buf...
Java中String类常用的方法 1packagecom.ProcessingString;23importjava.io.UnsupportedEncodingException;4importjava.util.Date;5importjava.util.Locale;6importjava.util.regex.Pattern;7publicclassStringMethodTest {89publicstaticvoidmain(String[] args) {10/**11* 第 1 种 String字符串类的使用方法12* string....
StringmyStr="Hello";System.out.println(myStr.startsWith("Hel"));// trueSystem.out.println(myStr.startsWith("llo"));// falseSystem.out.println(myStr.startsWith("o"));// false Try it Yourself » Definition and Usage ThestartsWith()method checks whether a string starts with the specifi...
;}catch(NoSuchMethodExceptione){System.out.println("找不到方法:"+methodName);}catch(Exceptione){System.out.println("执行方法时发生异常:"+e.getMessage());}}publicstaticvoidmain(String[]args){StringclassName="com.example.MyClass";StringmethodName="myMethod";executeMethod(className,methodName);}...
Note that this method does not take locale into account, and will result in unsatisfactory results for certain locales. Thejava.text.Collatorclass provides locale-sensitive comparison. Java documentation forjava.lang.String.equalsIgnoreCase(java.lang.String). Portions of ...
public class StringMethodTest2 { public static void main(String[] args) { String s = "HelloWorld"; // boolean contains(CharSequence s) 当且仅当此字符串包含指定的char值序列时才返回true。 System.out.println("是否包含子串'or':" + s.contains("or")); // true // int indexOf(String str...
String.EndsWith(String) MethodReference Feedback DefinitionNamespace: Java.Lang Assembly: Mono.Android.dll Tests if this string ends with the specified suffix. C# Копіювати [Android.Runtime.Register("endsWith", "(Ljava/lang/String;)Z", "")] public bool EndsWith (string ...