Page 251 - Computer science 868 Class 12
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19. String trim(): This method is used to delete the leading and trailing spaces from the string of the current object. If
no space is there, then there will be no change. Also, it does not affect the spaces between the words. This method
returns a value of String type.
String st1= " Computer Science ";
String st2= st1.trim();
System.out.println(st2);
Output:
Computer Science
Program 4 Write a program to input a word and create a new word after removing duplicates from the
given string:
For example,
Input : Applications
Output: Aplictons
1 import java.util.*;
2 class program
3 {
4 public static String remove(String s)
5 {
6 int l,c,i,j;
7 String org=s, s1="";
8 l=s.length();
9 for( i=0;i<(l-1);i++)
10 {
11 s1=s.substring(0,i+1);
12 c=0;
13 for(j=i+1; j<l;j++)
14 {
15 if(s.charAt(i)==s.charAt(j))
16 {
17 c++;
18 continue;
19 }
20 else
21 s1=s1+s.charAt(j);
22 }
23 s=s1;
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