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प्रश्न
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”);
उत्तर
0
Today i Holiday
(g) r1 = 5.83 .
r2 = 4.0
(h) Result 1 = 26100200
Result 2 = 126
(i) (i) Once
(ii) WIN
WIN
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संबंधित प्रश्न
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.
String x[] = {“SAMSUNG”, “NOKIA”, “SONY”, “MICROMAX”, “BLACKBERRY”};
Give the output of the following statements:
- System.out.println(x[1]);
- System.out.println(x[3].length());
Write the output for the following :
System.out.printIn(“Incredible” + “\n” + “world”);
If int y = 10 then find int z = (++y * (y++ +5));
State the output of the following program segment:
String str1 = “great”; String str2 = “minds”;
System.out.println (str1.substring (0,2).concat(str2.substring (1)));
System.out.println ((“WH”+(str1.substring (2).toUpperCase())));
Rewrite the following program segment using if-else statements instead of the ternary operator:
String grade = (mark >= 90) ? “A” : (mark >= 80) ? “B” : “C”;
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));
Define a class named movieMagic with the following description:
Instance variables/data members:
int year — to store the year of release of a movie.
String title — to-store the title of the movie
float rating — to store the popularity rating of the movie
(minimum rating=0.0 and maximum rating=5.0)
Member methods:
(i) movieMagic() Default constructor to initialize numeric data members to 0 and String data member to “ ”.
(ii) void accept() To input and store year, title and rating.
(iii) void display() To display the title of a movie and a message based on the rating as per the table below.
| Rating | Message to be displayed |
| 0.0 to 2.0 | Flop |
| 2.1 to 3.4 | Semi-hit |
| 3.5 to 4.5 | Hit |
| 4.6 to 5.0 | Super Hit |
Write a main method to create an object of the class and call the above member methods.
