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प्रश्न
What is the function of catch block in exception handling? Where does it appear in a program?
उत्तर
Catch block is used as exception handler in exception handling. We can put the code to deal with the execution that might arise, in this block. Catch block must appear just below the tiy block.
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संबंधित प्रश्न
Write the output for the following :
String s1 = “phoenix”; String s2 =”island”;
System.out.prindn (s1.substring(0).concat (s2.substring(2)));
System.out.println(s2.toUpperCase( ));
String x[ ] = {“Artificial intelligence”, “IOT”, “Machine learning”, “Big data”};
Give the output of the following statements:
(i) System.out.prindn(x[3]);
(ii) System.out.prindn(x.length);
A tech number has even number of digits. If the number is split in two equal halves, then the square of sum of these halves is equal to the number itself. Write a program to generate and print all four-digit tech numbers.
Example :
Consider the number 3025
Square of sum of the halves of 3025 = (30+25)2
= (55)2
= 3025 is a tech number.
Write the output for the following :
String s= “Today is Test”;
System.out.println(s.indexOf(‘T’)); System.out.println(s.substring(0, 7) + ” ” + “Holiday”);
State the output when the following program segment is executed:
String a = "Smartphone", b = "Graphic Art";
String h = a.substring(2, 5);
String k = b.substring(S).toUpperCase();
System.out.println(h);
System.out.println(k.equalsignoreCase(h)); Write the output for the following :
System.out.printIn(“Incredible” + “\n” + “world”);
If int y = 10 then find int z = (++y * (y++ +5));
Design a class to overload a function Joystring( )as follows:
(i) void Joystring (String s, char ch1 char ch2) with one string argument and two character arguments that replaces the character argument ch1 with the character argument ch2 in the given string s and prints the new string.
Example:
Input value of s = “TECHNALAGY”
ch1=‘A’,
ch2=‘O’
Output: TECHNOLOGY
(ii) void Joystring (String s) with one string argument that prints the position of the first space and the last space of the given string s.
Example:
Input value of = “Cloud computing means Internet based computing”
Output: First index: 5
Last index: 36
(iii) void Joystring (String s1, String s2) with two string arguments that combines the two string with a space between them and prints the resultant string. Example :
Input value of s1 =“COMMON WEALTH”
Input value of s2 =“GAMES”
Output: COMMON WEALTH GAMES
(use library functions)
Give the output of the following method:
public static void main (String [] args)
{
int a = 5;
a++;
System.out.println(a);
a -= (a--) − (--a);
System.out.println(a);
}
State the value of characteristic and mantissa when the following code is executed:
String s = “4.3756”;
int n = s.indexOf(‘.’);
int characteristic=Integer.parseInt (s.substring (0,n));
int mantissa=Integer.valueOf(s.substring(n+1));
