Page 427 - CA_Blue( J )_Class10
P. 427
6 Scanner sc= new Scanner(System.in);
7 String str,newstr="";
8 int i,l,cw=0;
9 char ch,ch1;
10 System.out.print("Enter a sentence : ");
11 str=sc.nextLine();
12 l=str.length();
13 for(i=0;i<l;i++)
14 {
15 ch=str.charAt(i);
16 if(ch>='A' && ch<='Z')
17 ch1 = (char)(ch+32);
18 else
19 if(ch>='a' && ch<='z')
20 ch1 = (char)(ch-32);
21 else
22 ch1=ch;
23 newstr=newstr+ch1;
24 }
25 System.out.println("Old String : "+str);
26 System.out.println("Converted string: "+newstr);
27 }
28 }
To input a sentence. Also input a character and replace it with another character taken from user.
Program 3
The program is case-sensitive.
1 import java.util.*;
2 class replace_char
3 {
4 public static void main()
5 {
6 Scanner sc= new Scanner(System.in);
7 String str, newstr ="";
8 int i, l;
9 char ch, chr, chi;
425
String Handling 425

