❮ String Methods ExampleGet your own Java ServerCopy part of a string into a char array:char[] myArray = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'}; System.out.println(myArray); String myStr = "Hello, World!"; myStr.getChars(7, 12, myArray, 4)...
In this example, we will choose the argument values for getChars() method such thatdstBegin+srcEnd-srcBeginis greater thandst.length. Since we do not have enough space in the destination to copy the chars from source StringBuilder sequence, getChars() throws java.lang.StringIndexOutOfBoundsExce...
StringindexOf()method returns the index of first occurrence of a substring or a character. indexOf() method has four override methods: 字符串indexOf()方法返回第一次出现的子字符串或字符的索引。 indexOf()方法具有四个覆盖方法: int indexOf(String str): It returns the index within this string ...
publicclassEndsWithExample{publicstaticvoidmain(String args[]){Stringstr1=newString("This is a test String");Stringstr2=newString("Test ABC");booleanvar1=str1.endsWith("String");booleanvar2=str1.endsWith("ABC");booleanvar3=str2.endsWith("String");booleanvar4=str2.endsWith("ABC"); S...
@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; ...
String 首先要知道String的长度限制我们就需要知道String是怎么存储字符串的，String其实是使用的一个char...
private String address; private String password; ... } 常用方法演示 String类有20多个方法,下面给出一个使用示例(这里演示大部分方法,剩下的可以自行去试试)。 //案例代码,来源于网络 public class StringDemo { public static void main(String[] args) throws Exception { String...
public String(StringBuffer buffer) { synchronized(buffer) { this.value = Arrays.copyOf(buffer.getValue(), buffer.length()); } } 因为StringBuffer是线程安全类,所以,这里加了同步锁,保证线程安全。 public String(StringBuilder builder) { this.value = Arrays.copyOf(builder.getValue(), builder.length...
String. getChars(char dst[], int dstBegin) void getChars(char dst[], int dstBegin) { // 拷贝value到dst[dstBegin]开始处 System.arraycopy(value, 0, dst, dstBegin, value.length); } public void getChars(int srcBegin, int srcEnd, char dst[], int dstBegin) { // checkBounds if (src...
to convert a string, or a portion of a string, into an array of characters palindrome.getChars(0, len, tempCharArray, 0); Creating Format Strings You have seen the use of theprintf()andformat()methods to print output with formatted numbers. TheStringclass has an equivalent class method,...