AT&T; LTE 12:06 PM 67% docs.googleusercontent.com 1. Write a Program to use arra
ID: 3920298 • Letter: A
Question
AT&T; LTE 12:06 PM 67% docs.googleusercontent.com 1. Write a Program to use arrays. 2. Write a program to copy one array's elements to another array without using array function. 3. Reverse a string using array. Hint: accept string value in store in a string variable str. Then convert str into array as follow: charl ch-str.ToCharArray; 4. Shows difference between checked statements and unchecked statements in C# using . Write a program of enumeration in which store three value in enumeration red, yellow and green and shows their numeric position. by writing suitable C# code in which display the user option and based on 6. Shows difference between break and continue 7. Write a program for library management system c: for computer books m: for mathematical books h: for history books e: for English books If user input wrong value then shows them message try again and serve the input prompt again using goto label statement. 8. Write a program to implement list of objects. Input a number from user and displays power of the number. Ask user's to whether continue or not. If user presses y or Y then continue and again accept a number. If user presses any other characters or numbers then quit. (Use while loop) Using for loop print the following output in web 121 12321 1234321 123454321Explanation / Answer
1. PROGRAM
import java.util.Scanner;
// create main class ArrayProgram
class ArrayProgram
{
public static void main(String [] args)
{
Scanner scr=new Scanner(System.in); // create Scanner Object scr
int [] a=new int[10]; // declare integer array a
System.out.println("Enter 10 Random Array Elements: ");
for(int i=0;i<10;i++) // create for loop until 10 elements
a[i]=scr.nextInt(); // read array elements
System.out.println("Array Elements are");
for(int i=0;i<10;i++) // create for loop until 10 elements
System.out.print(a[i]+" "); // display array elements
}
}
OUTPUT
F:>javac ArrayProgram.java
F:>java ArrayProgram
Enter 10 Random Array Elements:
55
8
25
13
48
69
82
99
156
259
Array Elements are
55 8 25 13 48 69 82 99 156 259
2. PROGRAM
import java.util.Scanner;
class CopyArray
{
public static void main(String [] args)
{
Scanner scr=new Scanner(System.in); // create Scanner Object scr
int [] a=new int[10]; // declare integer array a
System.out.println("Enter 10 Random Array Elements: ");
for(int i=0;i<10;i++) // create for loop until 10 elements
a[i]=scr.nextInt(); // read array elements
System.out.println("Array A Elements are");
for(int i=0;i<10;i++) // create for loop until 10 elements
System.out.print(a[i]+" "); // display array a elements
int [] b=new int[10]; // declare another array integer variable b
// copy existing array element into array b
for(int i=0;i<10;i++)
b[i]=a[i];
System.out.println(" After Copy Array into B Elements are");
for(int i=0;i<10;i++) // create for loop until 10 elements
System.out.print(b[i]+" "); // display array b elements
}
}
OUTPUT
F:>javac CopyArray.java
F:>java CopyArray
Enter 10 Random Array Elements:
1
2
5
99
45
35
6
7
8
92
Array A Elements are
1 2 5 99 45 35 6 7 8 92
After Copy Array into B Elements are
1 2 5 99 45 35 6 7 8 92
3. PROGRAM
import java.util.Scanner;
class ReverseString
{
public static void main(String [] args)
{
Scanner scr=new Scanner(System.in); // create Scanner object scr
String str; // declare string object str
System.out.print("Enter String: ");
str=scr.next(); // read string
char [] ch=str.toCharArray(); // convert given string to character array
System.out.print(" Reverse the given String is: ");
for(int i=ch.length-1;i>=0;i--) // create for loop from length of the string to 0
{
System.out.print(ch[i]); // display reverse string
}
}
}
OUTPUT
F:>javac ReverseString.java
F:>java ReverseString
Enter String: washington
Reverse the given String is: notgnihsaw
4. PROGRAM
using System;
class CheckProgram
{
public short a = 30000;
public short b = 20000;
public short c;
public int sum()
{
try
{
c = checked((short)(a + b));
}
catch (System.OverflowException e)
{
System.Console.WriteLine(e.ToString());
}
return c;
}
public int mul()
{
try
{
checked
{
c = (short)(a * b);
}
}
catch (System.OverflowException e)
{
System.Console.WriteLine(e.ToString());
}
return c;
}
public int sum_Unchecked()
{
try
{
c = unchecked((short)(a + b));
}
catch (System.OverflowException e)
{
System.Console.WriteLine(e.ToString());
}
return c;
}
public int mul_Unchecked()
{
try
{
unchecked
{
c = (short)(a * b);
}
}
catch (System.OverflowException e)
{
System.Console.WriteLine(e.ToString());
}
return c;
}
static void Main(string[] args)
{
CheckProgram p = new CheckProgram();
// For checked
Console.WriteLine("Checked output value is: {0}", p.sum());
Console.WriteLine("Checked output value is: {0}", p.mul());
// For Unchecked
Console.WriteLine("Checked output value is: {0}", p.sum_Unchecked());
Console.WriteLine("Checked output value is: {0}", p.mul_Unchecked());
Console.ReadKey(true);
}
}
OUTPUT
System.OverflowException: Arithmetic operation resulted in an overflow.
at CheckProgram.sum () [0x00000] in <cb17ca2b3a2f41c787700dc409d9e990>:0
Checked output value is: 0
System.OverflowException: Arithmetic operation resulted in an overflow.
at CheckProgram.mul () [0x00000] in <cb17ca2b3a2f41c787700dc409d9e990>:0
Checked output value is: 0
Checked output value is: -15536
Checked output value is: 17920
5. PROGRAM
class EnumTest
{
public enum Color{ RED(1),YELLOW(4),GREEN(5);
int val;
Color(int x){
val=x;
}
int showValue(){
return val;
}
}
public static void main(String [] args)
{
System.out.println("Enumerated List:");
for(Color c: Color.values())
System.out.println(c+" values "+c.showValue());
}
}
OUTPUT
F:>javac EnumTest.java
F:>java EnumTest
Enumerated List:
RED values 1
YELLOW values 4
GREEN values 5
PROGRAM-6
BREAK STATEMENT
using System;
class BreakTest
{
public static void Main(String [] args)
{
for(int i=0;i<=5;i++)
{
if(i==4){ break; }
Console.WriteLine("The number is: "+i);
}
}
}
OUTPUT
The number is: 0
The number is: 1
The number is: 2
The number is: 3
CONTINUE STATEMENT
using System;
class ContinueTest
{
public static void Main(String [] args)
{
for(int i=0;i<=5;i++)
{
if(i==4){ continue;}
Console.WriteLine("The number is: "+i);
}
}
}
OUTPUT
The number is: 0
The number is: 1
The number is: 2
The number is: 3
The number is: 5
PROGRAM-7
import java.util.Scanner;
class LibraryMgt
{
public static char Menu()
{
char ch;
Scanner scr=new Scanner(System.in);
System.out.println(" LIBRARY MANAGEMENT ");
System.out.println("c: for computer books");
System.out.println("m: for mathematical books");
System.out.println("h: for history books");
System.out.println("e: for English books");
System.out.print("Enter Your Option: ");
ch=scr.next().charAt(0);
return ch;
}
public static void main(String [] args)
{
char ch;
outer: {
ch=Menu();
if(ch=='c')
System.out.println("Computer Books are Available");
else if(ch=='m')
System.out.println("Mathematics Books are Available");
else if(ch=='h')
System.out.println("History Books are Available");
else if(ch=='e')
System.out.println("English Books are Available");
else {
System.out.println("Try Again...");
break outer;
}
}
}
}
OUTPUT
F:>javac LibraryMgt.java
F:>java LibraryMgt
LIBRARY MANAGEMENT
c: for computer books
m: for mathematical books
h: for history books
e: for English books
Enter Your Option: c
Computer Books are Available
F:>java LibraryMgt
LIBRARY MANAGEMENT
c: for computer books
m: for mathematical books
h: for history books
e: for English books
Enter Your Option: s
Try Again...
PROGRAM-9
import java.util.Scanner;
class PowerTest
{
public static void main(String [] args)
{
int num;
char ch;
Scanner scr=new Scanner(System.in);
while(true)
{
System.out.print("Enter Number: ");
num=scr.nextInt();
double pow=Math.pow(num,2);
System.out.println("The Power of "+num+" is "+pow);
System.out.print("Continue or Not (Y/N): ");
ch=scr.next().charAt(0);
if(ch=='n'||ch=='N') System.exit(0);
}
}
}
OUTPUT
F:>javac PowerTest.java
F:>java PowerTest
Enter Number: 2
The Power of 2 is 4.0
Continue or Not (Y/N): y
Enter Number: 5
The Power of 5 is 25.0
Continue or Not (Y/N): y
Enter Number: 9
The Power of 9 is 81.0
Continue or Not (Y/N): n
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