JAVA PROGRAM • LEVEL 02 — VARIABLES, DATA TYPES & CASTING

Display Primitive Values in Java

Learn display primitive values in java with a complete, compiler-ready Java 17 example.

BeginnerPrimitive typesLiterals

PROBLEM UNDERSTANDING

Input and expected output

Sample input
No input required
Sample output
18 2026 95 8000000000
2.5 3.14159 true A

COMPLETE JAVA 17 PROGRAM

Complete Java 17 implementation

java-primitive-types.java
Open in compiler
class Main {
    public static void main(String[] args) throws Exception {
        byte age = 18;
        short year = 2026;
        int score = 95;
        long population = 8000000000L;
        float rate = 2.5F;
        double pi = 3.14159;
        boolean ready = true;
        char grade = 'A';
        System.out.println(age + " " + year + " " + score + " " + population);
        System.out.println(rate + " " + pi + " " + ready + " " + grade);
    }
}

GUIDED CODE TOUR • NOT LIVE EXECUTION

Study the program line by line

Use the real compiler button above to run and debug with different inputs.

CURRENT STEP

Select Start to walk through the important lines.

SELECTED LINE

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EXPECTED OUTPUT FOR THE SAMPLE

18 2026 95 8000000000
2.5 3.14159 true A
0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

  1. Initialize the deterministic sample values used for display primitive values in java.
  2. Apply Primitive types and Literals in the order shown by the program.
  3. Print the final result and compare it with the documented sample output.

This Java 17 example demonstrates Primitive types and Literals through a complete, executable program. The values are intentionally small so students can trace each statement, verify the output, and then modify the example safely in the online compiler.

EFFICIENCY

Time and space complexity

Time complexity

O(1)

Auxiliary space

O(1)

DEBUGGING CHECKLIST

Common mistakes

Check this

Keep the class name Main and the entry method signature public static void main(String[] args) when using the online compiler.

Check this

Use Primitive types with compatible Java types; Java checks types and method signatures at compile time.

Check this

Java is case-sensitive, and every statement that requires a semicolon must end with one.

Try it yourself

Practice: Run the program with the sample input, predict its output, and then test one boundary case of your own.