Grade 10 Computer Application String Handling

1.Give the output of the following program fragment:String s=new String(“He went to the market”);String r; r=s.replace(“went”,“is going”); System.out.println(r);

• He is going to the market
• He is going to the mall

2. What will be the output for the following program segment?String s = new String(“abc”);System.out.println(s.toUpperCase());

• AbC
• ABC

3. What will be the output of the following code?char x = ‘A’; int m;m=(x= =’a’) ? ‘A’ : ‘a’;System.out.println(“m=”+m);

• 79
• 97

4. Write a statement each to perform the following task on a string:-Find and display the position of the last space in a string s.

• System.out.println(s.lastIndexOf(“ ”));
• double d=Double.parseDouble(x);

5. Write a statement each to perform the following task on a string:-Convert a number stored in a string variable x to double data type

• System.out.println(s.lastIndexOf(“ ”));
• double d=Double.parseDouble(x);

6.Give the output of the following string functions:-(ii) “DEDICATE”.compareTo(“DEVOTE”)

• -81
• -18

7. Consider the following String array and give the output:String arr[]={“DELHI”, “CHENNAI”, “MUMBAI”, “LUCKNOW”, “JAIPUR”};System.out.print(arr[0].length()>arr[3].length());System.out.print(arr[4].substring(0,3));

• false JAI
• false jai

8.Give the ouput of the following string functions:“MISSISSIPPI”.indexOf(‘S’)+“MISSISSIPPI”.lastIndexOf(‘I’)

• 12
• 5

9.Give the output of the following:String n = “Computer Knowledge”;String m = “Computer Applications”;System.out.print(n.substring (0,8).concat(m.substring(9)));System.out.print(n.endsWith(“e”));

• ComputerApplications false
• ComputerApplications true

10.What will the following code output?String s = “malayalam”;System.out.print(s.indexOf(‘m’));System.out.print(s.lastIndexOf(‘m’));

• 08
• 80