Want to learn how to code? Master the foundations of Java, an in-demand programming language. Get hands-on with immersive exercises, interactive quizzes, and earn certifications to build in-demand skills.

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Java

Java is a high-level, object-oriented language known for its portability and reliability. Mastering Java is key for developers to build scalable, secure software efficiently.

In this course, you will start by mastering the art of problem-solving with simple Java programs, such as the Bottle Filling example. You will learn how to structure your solutions, create execution sheets, and enhance your problem-solving abilities through practical exercises and quizzes. Progressing further, you will learn decision-making and branching in Java, understanding flowcharts, conditional expressions, and their application. You will also learn about Java basics, including the first Java program, fundamentals, conditional statements, and error categories, followed by in-depth lessons on working with Java strings and arrays. 

By the end of this course, you will have a solid understanding of Java programming fundamentals and the ability to solve real-world problems using Java.

Learn to Code: Java for Absolute Beginners

What is the result when the following program is executed?

```java
class Test 
{
 public static void main( String args[]) 
 {
 for (int i = 0; i < 3; i ++)
 {
 System.out.print(i + " ");
 }
 }
}
```

What is the result when the following program is executed?
<pre><code class="language-java">class Test 
{
 public static void main( String args[]) 
 {
 for (int i = 0; i &lt; 3; i ++)
 {
 System.out.print(i + &quot; &quot;);
 }
 }
}
</code></pre>

What is the result of the following program?
```java
class Test 
{
 public static void main(String args[]) 
 {
 for (int i = 1; i < 20; i += 7)
 {
 System.out.print(i + " ");
 }
 }
}
```

What is the result of the following program?
<pre><code class="language-java">class Test 
{
 public static void main(String args[]) 
 {
 for (int i = 1; i &lt; 20; i += 7)
 {
 System.out.print(i + &quot; &quot;);
 }
 }
}
</code></pre>

What is the result when the following program is executed?

```java
class Test 
{
 public static void main(String args[]) 
 {
 for (int j = 0; j < 4; j++)
 {
 System.out.print((int) Math.pow(3, j) + " ");
 }
 }
}
```

What is the result when the following program is executed?
<pre><code class="language-java">class Test 
{
 public static void main(String args[]) 
 {
 for (int j = 0; j &lt; 4; j++)
 {
 System.out.print((int) Math.pow(3, j) + &quot; &quot;);
 }
 }
}
</code></pre>

What is the output when the following program is executed?

```Java
class Test 
{
   public static void main(String args[]) 
   {
      int num1 = 23;
      int num2 = 1;
      while (num1 > 0)
      {
         num2 = num1 % 10;
         num1 = num1 / 10;
      }
      System.out.println(num2);
   }
}
```


What is the output when the following program is executed?
<pre><code class="language-Java">class Test 
{
 public static void main(String args[]) 
 {
 int num1 = 23;
 int num2 = 1;
 while (num1 &gt; 0)
 {
 num2 = num1 % 10;
 num1 = num1 / 10;
 }
 System.out.println(num2);
 }
}
</code></pre>

What is the output when the following program is executed?

```Java
class Test 
{
 public static void main(String args[]) 
 {
 int row = 1;
 int col = 2;
 while (row < 3)
 {
 while (col < 4)
 {
 System.out.print("( " + row + " " + col + " ) ");
 row += 1;
 col += 1;
 }
 }
 }
}
```

What is the output when the following program is executed?
<pre><code class="language-Java">class Test 
{
 public static void main(String args[]) 
 {
 int row = 1;
 int col = 2;
 while (row &lt; 3)
 {
 while (col &lt; 4)
 {
 System.out.print(&quot;( &quot; + row + &quot; &quot; + col + &quot; ) &quot;);
 row += 1;
 col += 1;
 }
 }
 }
}
</code></pre>

What is the result when the following program is executed?

```Java
class Test 
{
 public static void main(String args[]) 
 {
 for (int r = 1; r < 3; r++)
 {
 for (int c = 2; c < 4; c++)
 {
 System.out.print("+ ");
 }
 System.out.print("- ");
 }
 }
}
```

What is the result when the following program is executed?
<pre><code class="language-Java">class Test 
{
 public static void main(String args[]) 
 {
 for (int r = 1; r &lt; 3; r++)
 {
 for (int c = 2; c &lt; 4; c++)
 {
 System.out.print(&quot;+ &quot;);
 }
 System.out.print(&quot;- &quot;);
 }
 }
}
</code></pre>

Test your knowledge of repetition with loops.

About the Course

Problem Solving with Simple Programs

Decisions and Branching

Java Basics

Repetition with Loops

Strings and Arrays

Methods

Appendix - Complex Programs

Wrap Up

Quiz on Repetition with Loops