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Principios Básicos de Java
course content

Contenido del Curso

Principios Básicos de Java

Principios Básicos de Java

1. Iniciando
Desarrollo BackendRol de Java en el BackendVentajas de JavaTipos de Memoria en JavaSintaxis de JavaTu Primer ProgramaComentarios
2. Tipos Básicos, Operaciones
Tipos de Datos PrimitivosDesafíoTabla de Caracteres y ASCIIOperaciones Matemáticas en JavaSentencia If-ElseSentencia Switch-CaseNew Task StructureDesafío
3. Loops
Introducción A Los LoopsLoop WhileLoop Do-WhileChallenge: Building a Server Retry MechanismLoop ForIncremento Y DecrementoLoop Infinito (bonus)Desafío: Factorial
4. Arrays
¿Qué es Array?Usando Loops con ArraysIndex Out Of BoundsArray BidimensionalIteración en una Array BidimensionalLoop For-Each
5. String
¿Qué Es String?Métodos Básicos En String Parte 1Métodos Básicos en String Parte 2DesafíoNullPointer ExceptionStringBuilderConjunto de Strings, Método Equals()Resumen

book
Introducción A Los Loops

What if we need to repeat a code fragment many times? For example, our boss assigned us an incredible task: displaying the same message on the screen 1,000 times. Can you imagine how you would spend the whole day typing System.out.println(); over and over again?

But here, loops come to the rescue!

In Java, there are several types of loops, each better suited for specific tasks. Throughout the next section, you will explore each of them and understand where and when it is best to use them.

Note

In Java, there are several types of loops, each better suited for specific tasks. Throughout the next section, you will explore each of them and understand where and when it is best to use them.

java

Main

copy

              
1234567891011

            
package com.example;

public class Main {
    public static void main(String[] args) {
        System.out.println("Hey, I will appear here 5 times");
        System.out.println("Hey, I will appear here 5 times");
        System.out.println("Hey, I will appear here 5 times");
        System.out.println("Hey, I will appear here 5 times");
        System.out.println("Hey, I will appear here 5 times");
    }
}

As we can see, we have completed the task and displayed the text on the screen five times.

Now, all we have to do is display this text on the screen only 995 more times, and the task will be complete.

Any programmer looking at our solution method will say that we've gone crazy!

So, let's use a loop that will perform a specific operation until the loop's execution condition becomes false:

java

Main

copy

              
1234567891011

            
package com.example;

public class Main {
    public static void main(String[] args) {
        int number_of_operations = 0;
        while (number_of_operations < 10) {
            System.out.println("Hey, I will appear here 10 times");
            number_of_operations = number_of_operations + 1;
        }
    }
}

In the code above, we used a loop. However, it's worth noting that initially, we declared the variable number_of_operations to count how many times we performed the operation. Then we set a condition that this variable should have a value less than 10, which means the loop will execute until the variable's value reaches 10. We will explore the operation of specific loop examples in more detail in the following chapters.

1. What is a loop in java?

2. ¿Qué es un bucle en Java?

question mark

What is a loop in java?

Select the correct answer

question mark

¿Qué es un bucle en Java?

Select the correct answer

¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 3. Capítulo 1

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course content

Contenido del Curso

Principios Básicos de Java

Principios Básicos de Java

1. Iniciando
Desarrollo BackendRol de Java en el BackendVentajas de JavaTipos de Memoria en JavaSintaxis de JavaTu Primer ProgramaComentarios
2. Tipos Básicos, Operaciones
Tipos de Datos PrimitivosDesafíoTabla de Caracteres y ASCIIOperaciones Matemáticas en JavaSentencia If-ElseSentencia Switch-CaseNew Task StructureDesafío
3. Loops
Introducción A Los LoopsLoop WhileLoop Do-WhileChallenge: Building a Server Retry MechanismLoop ForIncremento Y DecrementoLoop Infinito (bonus)Desafío: Factorial
4. Arrays
¿Qué es Array?Usando Loops con ArraysIndex Out Of BoundsArray BidimensionalIteración en una Array BidimensionalLoop For-Each
5. String
¿Qué Es String?Métodos Básicos En String Parte 1Métodos Básicos en String Parte 2DesafíoNullPointer ExceptionStringBuilderConjunto de Strings, Método Equals()Resumen

book
Introducción A Los Loops

What if we need to repeat a code fragment many times? For example, our boss assigned us an incredible task: displaying the same message on the screen 1,000 times. Can you imagine how you would spend the whole day typing System.out.println(); over and over again?

But here, loops come to the rescue!

In Java, there are several types of loops, each better suited for specific tasks. Throughout the next section, you will explore each of them and understand where and when it is best to use them.

Note

In Java, there are several types of loops, each better suited for specific tasks. Throughout the next section, you will explore each of them and understand where and when it is best to use them.

java

Main

copy

              
1234567891011

            
package com.example;

public class Main {
    public static void main(String[] args) {
        System.out.println("Hey, I will appear here 5 times");
        System.out.println("Hey, I will appear here 5 times");
        System.out.println("Hey, I will appear here 5 times");
        System.out.println("Hey, I will appear here 5 times");
        System.out.println("Hey, I will appear here 5 times");
    }
}

As we can see, we have completed the task and displayed the text on the screen five times.

Now, all we have to do is display this text on the screen only 995 more times, and the task will be complete.

Any programmer looking at our solution method will say that we've gone crazy!

So, let's use a loop that will perform a specific operation until the loop's execution condition becomes false:

java

Main

copy

              
1234567891011

            
package com.example;

public class Main {
    public static void main(String[] args) {
        int number_of_operations = 0;
        while (number_of_operations < 10) {
            System.out.println("Hey, I will appear here 10 times");
            number_of_operations = number_of_operations + 1;
        }
    }
}

In the code above, we used a loop. However, it's worth noting that initially, we declared the variable number_of_operations to count how many times we performed the operation. Then we set a condition that this variable should have a value less than 10, which means the loop will execute until the variable's value reaches 10. We will explore the operation of specific loop examples in more detail in the following chapters.

1. What is a loop in java?

2. ¿Qué es un bucle en Java?

question mark

What is a loop in java?

Select the correct answer

question mark

¿Qué es un bucle en Java?

Select the correct answer

¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 3. Capítulo 1
Lamentamos que algo salió mal. ¿Qué pasó?
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