Predict the answers to the following problems. 5 / 2.5 _______ 8 % 4 _______ 1 /

Question

Predict the answers to the following problems.  

5 / 2.5 _______

8 % 4 _______

1 / 3 _______

2 % 7 _______

3 / 2.0 _______

Write the following mathematical expressions as Java expressions:

2x - (4 - y)

x * 2

(2x -1 ) / 2x3

Answer the following exercised:

What output is produced by the following statements?

String test = “Harry Potter”;

System.out.println(test.length());

System.out.println(test.toUpperCase());

What output is produced by the following statements?

String test = “Harry Potter”;

System.out.println(test + “Goblet of Fire”);

Explanation / Answer

1.

5/2.5 = 2

8%4=0

1 / 3 =1

2 % 7 =2

3 / 2.=1

4.//problem to give output for below program

String test = “Harry Potter”;

//Here + is used to combine first and second statements into one.

System.out.println(test + “Goblet of Fire”);

output:

Harry Potter Goblet of Fire

3.

//program to get the ouput from test variable of type string

String test = “Harry Potter”;

//gets the length of the string vriable declared in test variable

System.out.println(test.length());

//converts into upper case

System.out.println(test.toUpperCase());

soln:

output:

case:1 length of test variable of type string is 11

case 2converts the given statemnts into upper case.

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