Write a program to Remove the black space from given sentence in java

package com.dashzin.prog;

public class BlanclSpace {

public static void main(String[] args) {

String st="welcome to dashzin blog";

 

// using replaceAll method

String s=st.replaceAll(" ", "");

System.out.println(s);

 

// without using pridefined method

 

char ch[]=st.toCharArray();

StringBuffer sb=new StringBuffer();

  for(int i=0;i<ch.length;i++){

  if(ch[i]!=' ' && ch[i]!='\t'){

  sb.append(ch[i]);

  }

  }

String st1=sb.toString();

System.out.println(st1);

}

}

Output

welcometodashzinblog
welcometodashzinblog