Write a Java program to find the index of the first unique character in a given string. Assume that there is at least one unique character in the string. Pictorial Presentation: Sample Solution: Java Code: importjava.util.*;publicclassSolution{publicstaticvoidmain(String[]args){// Test the ...
public int indexOf(String str) { return indexOf(str, 0); } public int indexOf(String str, int fromIndex) { return indexOf(value, 0, value.length, str.value, 0, str.value.length, fromIndex); } static int indexOf(char[] source, int sourceOffset, int sourceCount, String target, int...
示例: importjava.lang.*;publicclassStringDemo {publicstaticvoidmain(String[] args) { String str= "This is tanglc's cnblog";//returns the index of character s appear in the first timeSystem.out.println("index of letter 's' = " + str.indexOf('s'));//returns -1 as character e is...
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1:Scanner的使用(了解) (1)在JDK5以后出现的用于键盘录入数据的类。 (2)构造方法: A:讲解了System.in这个东西。 它其实是标准的输入流,对应于键盘录入 B:构造方法 InputStream is = System.in; Scanner(InputStream is) C
".Stringstr="Java Exercises!";// Print the original string.System.out.println("Original String = "+str);// Get the character at positions 0 and 10.intindex1=str.charAt(0);// Get the ASCII value of the character at position 0.intindex2=str.charAt(10);// Get the ASCII value of ...
1.String.indexOf()API TheString.indexOf()in Java returns the index location of a specified character or string. TheindexOf()method is an overloaded method and accepts two arguments: substringorch: the substring that needs to be located in the current string. ...
splite()可以将字符串从正则表达式匹配的地方切开,返回一个String数组。比如说: public class Splitting { public static String knights = "Then, when you have found the shrubbery. you must "+ "cut down the mightiest tree in the forest..." + ...
text/java this.charAt(k) == ch </blockquote> is true. For other values ofch, it is the largest valueksuch that: <blockquote> text/java this.codePointAt(k) == ch </blockquote> is true. In either case, if no such character occurs in this string, then-1is returned. TheStringis ...
Returns:Anintvalue, representing the index of the first occurrence of the character in the string, or -1 if it never occurs More Examples Example Find the last occurrence of "e" in a string, starting the search at position 5: publicclassMain{publicstaticvoidmain(String[]args){StringmyStr=...