Ejemplo 1: contar caracteres repetidos en una cadena en java
void Findrepeter(){
String s="mmababctamantlslmag";
int distinct = 0 ;
for (int i = 0; i < s.length(); i++) {
for (int j = 0; j < s.length(); j++) {
if(s.charAt(i)==s.charAt(j))
{
distinct++;
}
}
System.out.println(s.charAt(i)+"--"+distinct);
String d=String.valueOf(s.charAt(i)).trim();
s=s.replaceAll(d,"");
distinct = 0;
}
}
Ejemplo 2: contar caracteres repetidos en una cadena en java
import java.io.*;
public class CountChar
{
public static void main(String[] args) throws IOException
{
String ch;
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter the Statement:");
ch=br.readLine();
int count=0,len=0;
do
{
try
{
char name[]=ch.toCharArray();
len=name.length;
count=0;
for(int j=0;j<len;j++)
{
if((name[0]==name[j])&&((name[0]>=65&&name[0]<=91)||(name[0]>=97&&name[0]<=123)))
count++;
}
if(count!=0)
System.out.println(name[0]+" "+count+" Times");
ch=ch.replace(""+name[0],"");
}
catch(Exception ex){}
}
while(len!=1);
}
}
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