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Java Program to Illustrate Dependency Injection

Deepika Sahu answered on December 24, 2022 Popularity 1/10 Helpfulness 1/10

answer Java Program to Illustrate Dependency Injection

Java Program to Illustrate Dependency Injection

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// Java Program to Illustrate Dependency Injection
 
// Dependent class ExpenseTracker
public class ExpenseTracker {
 
    // Class data member
    private ExpenseCalculator expenseCal;
 
    // Constructor
    // Dependencies are injected
    // using Constructor Dependency Injection
    public ExpenseTracker(
        ExpenseCalculator expenseCalculator)
    {
 
        // This keyword refers to current instance itself
        this.expenseCal = expenseCalculator;
    }
 
    // Method
    public void add(Transaction transaction)
    {
        int expense
            = expenseCal.getTransactionAmount(transaction);
        add(expense);
    }
 
    // Dependencies are injected
    // using Setter Dependency Injection
    public void setExpenseCalculator(
        ExpenseCalculator expenseCalculator)
    {
        this.expenseCal = expenseCalculator;
    }
}

Popularity 1/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: dependency-injection java

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Contributed on Dec 24 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Java Program to Illustrate Dependency Injection

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