Output using System.out.print in Java - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print "Hello" without a newline.

Java

System.out.[1]("Hello");

Drag options to blanks, or click blank then click option'

Aprintf

Bprintln

Cprint

Dwrite

Attempts:

3 left

💡 Hint

Common Mistakes

Using println instead of print, which adds a newline.

Using write which requires different parameters.

The print method prints text without moving to a new line.

2fill in blank

medium

Complete the code to print the number 123 without a newline.

Java

System.out.[1](123);

Drag options to blanks, or click blank then click option'

Aprint

Bprintln

Cprintf

Dwrite

Attempts:

3 left

💡 Hint

Common Mistakes

Using println which adds a newline.

Using printf without format string.

print prints the number without moving to a new line.

3fill in blank

hard

Fix the error in the code to print "Java" without a newline.

Java

System.out.[1]("Java");

Drag options to blanks, or click blank then click option'

Aprintln

Bwrite

Cprintline

Dprint

Attempts:

3 left

💡 Hint

Common Mistakes

Using a non-existent method printline.

Confusing println with print.

print is the correct method to print without newline. printline is not a valid method.

4fill in blank

hard

Fill both blanks to print the sum of 5 and 3 without a newline.

Java

System.out.[1](5 [2] 3);

Drag options to blanks, or click blank then click option'

Aprint

B+

C-

Dprintln

Attempts:

3 left

💡 Hint

Common Mistakes

Using println which adds a newline.

Using subtraction instead of addition.

Use print to avoid newline and + to add numbers.

5fill in blank

hard

Fill both blanks to print the uppercase word "HELLO" without a newline.

Java

System.out.[1]("hello".[2]());

Drag options to blanks, or click blank then click option'

Aprintln

BtoUpperCase

Cprint

DtoLowerCase

Attempts:

3 left

💡 Hint

Common Mistakes

Using println which adds a newline.

Using toLowerCase instead of toUpperCase.

Use print to avoid newline and toUpperCase() to convert text to uppercase.

Practice

1. What does System.out.print do in Java?

easy

A. Reads input from the user

B. Prints text and moves to a new line automatically

C. Stops the program execution

D. Prints text on the screen without moving to a new line

Solution

1. Step 1: Understand the function of System.out.print

   System.out.print outputs text to the screen but does not add a new line after printing.

2. Step 2: Compare with System.out.println

   System.out.println prints text and moves to the next line, unlike System.out.print.

3. Final Answer:

   Prints text on the screen without moving to a new line -> Option D

4. Quick Check:

   System.out.print shows output on same line [OK]

Hint: Remember: print stays on same line, println moves down [OK]

Common Mistakes:

• Confusing print with println
• Thinking print reads input
• Assuming print stops program

2. Which of the following is the correct syntax to print "Hello" without a new line in Java?

easy

A. System.out.print("Hello");

B. System.out.println("Hello");

C. print("Hello");

D. System.print.out("Hello");

Solution

1. Step 1: Identify correct method for printing without new line

   System.out.print prints text without moving to a new line.

2. Step 2: Check syntax correctness

   System.out.println adds a new line, print("Hello") is invalid in Java, and System.print.out is incorrect order.

3. Final Answer:

   System.out.print("Hello"); -> Option A

4. Quick Check:

   Correct syntax for print without newline is System.out.print [OK]

Hint: Use System.out.print for same line output [OK]

Common Mistakes:

• Using println instead of print
• Wrong method order like System.print.out
• Omitting System.out

3. What is the output of the following code?

System.out.print("Hi");
System.out.print(" ");
System.out.print("There");

medium

A. Hi There\n

B. Hi There

C. HiThere

D. Hi\nThere

Solution

1. Step 1: Analyze each print statement

   First prints "Hi" with no newline, second prints a space, third prints "There" continuing on the same line.

2. Step 2: Combine outputs

   All prints are on the same line, so output is "Hi There" exactly.

3. Final Answer:

   Hi There -> Option B

4. Quick Check:

   print joins outputs on same line [OK]

Hint: print does not add newline, so outputs join directly [OK]

Common Mistakes:

• Assuming print adds newline
• Ignoring the space printed
• Confusing \n with space

4. Find the error in this code snippet:

System.out.print("Hello");
System.out.print(123);
System.out.print(\n);

medium

A. Missing semicolon after first print

B. Cannot print numbers with print

C. Invalid escape sequence in third print

D. System.out.print requires parentheses

Solution

1. Step 1: Check each print statement syntax

   First and second print statements are correct with semicolons and valid arguments.

2. Step 2: Identify invalid escape sequence

   Third print uses \n without quotes, which is invalid syntax in Java.

3. Final Answer:

   Invalid escape sequence in third print -> Option C

4. Quick Check:

   Escape sequences must be inside quotes [OK]

Hint: Escape sequences need quotes, else syntax error [OK]

Common Mistakes:

• Forgetting quotes around strings
• Thinking numbers can't be printed
• Missing semicolons

5. How can you print the numbers 1 to 3 on the same line separated by spaces using System.out.print? Choose the correct code.

hard

A. for(int i=1; i<=3; i++) { System.out.print(i + " "); }

B. for(int i=1; i<=3; i++) { System.out.println(i + " "); }

C. for(int i=1; i<=3; i++) { System.out.print(i); System.out.print("\n"); }

D. for(int i=1; i<=3; i++) { System.out.print(i); System.out.print(" "); System.out.println(); }

Solution

1. Step 1: Understand the goal

   We want numbers 1 2 3 on the same line separated by spaces.

2. Step 2: Analyze each option

   for(int i=1; i<=3; i++) { System.out.print(i + " "); } prints each number with a space using print, so all stay on same line. for(int i=1; i<=3; i++) { System.out.println(i + " "); } uses println which moves to new line each time. for(int i=1; i<=3; i++) { System.out.print(i); System.out.print("\n"); } prints newline after each number, so numbers appear on separate lines. for(int i=1; i<=3; i++) { System.out.print(i); System.out.print(" "); System.out.println(); } prints newline after each number and space, so also multiple lines.

3. Final Answer:

   for(int i=1; i<=3; i++) { System.out.print(i + " "); } -> Option A

4. Quick Check:

   Use print with space to stay on same line [OK]

Hint: Use print with space inside loop to stay on one line [OK]

Common Mistakes:

• Using println inside loop
• Adding extra println causing new lines
• Not adding spaces between numbers