class Do1 { public static void main(String[] args) { AA a=new CC(); if(a instanceof CC) { CC b=(CC)a; b.run(); } } } class AA { int y=3; void brun() { System.out.println(y); } } class CC extends AA { int x=1; void run() { System.out.println(x); } } c
有两个字符串,每个字符串的字符从A-Z中选取,比如: B = "ABBC", A = "ACBBD".那么A包含所有B中出现的字符.如果A = "ACBD" 或者 A = "ABBD",则我们认为A不包含B中所有的字符. public static void main(String[] args){ String A = "ABBC"; String B = &qu
package src; public class Main { public static void main(String args[]){ String chinese = "中文 is english"; int clenth = 0; try{ clenth = chinese.getBytes("gbk").length; }catch(Exception e){ clenth = chinese.getBytes().length; } int cle
public class SubString { public boolean[] chkSubStr(String[] p, int n, String s) { boolean [] str=new boolean[n]; for (int i = 0; i < p.length; i++) { int result = s.indexOf(p[i]); if(result!=-1){ str[i]=true; } else{ str[i]=false; } } return str; }