String str;
str＝str.substring(int beginIndex); intercept the string whose length is beginIndex from the first letter of str, and assign the remaining string to str;
str＝str .substring(int beginIndex, int endIndex); Intercept the string from beginIndex to the end of endIndex in str, and assign it to str;
demo:
class Test { public static void main(String[] args) { String s1 ="1234567890abcdefgh"; s1 = s1.substring(10); System.out.println(s1); } }
Run result: abcdefgh
class Test { public static void main(String[] args) { String s1 ="1234567890abcdefgh"; s1 = s1.substring(0,9); System.out.println(s1); } }
Running result: 123456789
The following is a typical example:
public class StringDemo{ public static void main(String agrs[]){ String str="this is my original string"; String toDelete=" original"; if(str.startsWith(toDelete)) str=str.substring(toDelete.length()); else if(str.endsWith(toDelete)) str=str.substring(0, str.length()-toDelete.length()); else { int index=str.indexOf(toDelete); if(index!=-1) { String str1=str.substring(0, index); String str2=str.substring(index+toDelete.length()); str=str1+str2; } else System.out.println("string /""+toDelete+"/" not found"); } System.out.println(str); } }
Running result:
this is my string
More characters in JAVA For related articles on the usage summary of the string function subString, please pay attention to the PHP Chinese website!
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