Program43.java Here are some data regarding a retail purchase: item: photo paper dept: A price: $8.99 quantity: 4 taxable: true Assign these data items (without user inputs) to Java variables of the most suitable type as suggested by the values. Then use the variables to calculate and generate the output exactly as shown below. Use only the printf() method. Purple indicates a variable to be displayed using a printf format specifier. Required Output Purchase: photo paper, quantity 4 @ $8.99 Dept A, taxable? true Subtotal $35.96 7 % sales tax is $2.52 Total payable $38.48 Program51.java Write a program that uses a while loop to generate 49 random integers, all from 20 to 49, inclusive. The same loop should print the integers in seven rows and right-aligned in columns seven characters wide. The program should report both the count and the total of integers in the 20s, 30s, and 40s. See Sample Output. Sample Output Program52.java Write a program that prompts the user for a binary number (from 3 to 8 bits) as a String and converts it to base-10 decimal value. There are several ways to do this in Java but your program must use a for loop and first principles to perform the conversion. Print the base-10 number when the loop ends.

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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Program43.java
Here are some data regarding a retail purchase:

  • item: photo paper
  • dept: A
  • price: $8.99
  • quantity: 4
  • taxable: true

Assign these data items (without user inputs) to Java variables of the most suitable type as suggested by the values. Then use the variables to calculate and generate the output exactly as shown below. Use only the printf() method. Purple indicates a variable to be displayed using a printf format specifier.
Required Output
Purchase: photo paper, quantity 4 @ $8.99
Dept A, taxable? true
Subtotal $35.96
7 % sales tax is $2.52
Total payable $38.48

Program51.java

Write a program that uses a while loop to generate 49 random integers, all from 20 to 49, inclusive. The same loop should print the integers in seven rows and right-aligned in columns seven characters wide. The program should report both the count and the total of integers in the 20s, 30s, and 40s. See Sample Output.
Sample Output

Program52.java

Write a program that prompts the user for a binary number (from 3 to 8 bitsas a String and converts it to base-10 decimal value. There are several ways to do this in Java but your program must use a for loop and first principles to perform the conversion. Print the base-10 number when the loop ends.

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