srcEnd > string.length)srcEnd大于此字符串的长度。(destBegin < 0)destBegin为负。dstBegin+(srcEnd-srcBegin)大于dest.length。 示例:getChars()方法public class GetCharsExample{ public static void main(String args[]){ String str = new String("This is a String Handling Tutorial"); char[] array ...
publicclassStringToCharArrayExample{publicstaticvoidmain(String[]args){Stringstr="Hello, World!";char[]charArray=str.toCharArray();System.out.println("字符数组的长度:"+charArray.length);System.out.println("字符数组的内容:");for(charc:charArray){System.out.print(c+" ");}}} 1. 2. 3. 4....
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 strf1 = String.valueOf(f); //将单精度浮点型转换为字符串类型 String strd1 =...
char[] charArray = str.toCharArray(); for(int i = 0;i < charArray.length; i ++){ //小写变为大写,只需要减去32即可 charArray[i] -= 32; } System.out.println(new String(charArray)); System.out.println(new String(charArray,1,2)); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10...
public class StringToCharArrayExample { public static void main(String[] args) { String str = "Hello, World!"; char[] charArray = new char[str.length()]; // 创建一个与String长度相同的char数组 str.getChars(0, str.length(), charArray, 0); // 将字符串的字符复制到char数组中 // 输出...
Copy 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); System.out.println(myArray); ...
示例:String str="Java is so easy"; char ch=str.charAt(3); System.out.println(ch); 注意:此处下标从0开始! 5、获取指定位置的字符方法 方法:str.getChars(indexBegin,indexEnd,array,arrayBegin); 回到顶部 二、字符串比较 (1)不忽略字符串大小写情况下字符串的大小比较方法compareTo(another str) ...
The char array size is same as the length of the string. char charAt(int index): This method returns character at specific index of string. This method throws StringIndexOutOfBoundsException if the index argument value is negative or greater than the length of the string. getChars(int ...
首先，让我们从字符串“Rejoice”中提取“joi”并将其填充到预定义的 char 数组中：@Test public void testGetChars(){ String STRING_Rejoice = "Rejoice"; char[] joi = new char[3];STRING_Rejoice.getChars(2, 5, joi, 0);assertArrayEquals(new char[] { 'j', 'o', 'i' }, joi);} 如...
首先,我们需要定义一个方法,命名为getCharacterFromArray,它接收一个字符串数组array、一个整数参数elementIndex和一个整数参数characterIndex,并返回一个字符。 publicstaticchargetCharacterFromArray(String[]array,intelementIndex,intcharacterIndex){Stringelement=array[elementIndex];charcharacter=element.charAt(characterI...