Java Code:
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public class JavaConstructorChainingExample { int a; int b; public JavaConstructorChainingExample() { System.out.println("In default constructor."); } public JavaConstructorChainingExample(int a) { this(); this.a = a; System.out.println("In single parameter constructor."); } public JavaConstructorChainingExample(int a, int b) { this(a); this.b = b; System.out.println("In double parameter constructor."); } public static void main(String a[]) { JavaConstructorChainingExample mc = new JavaConstructorChainingExample(10, 20); System.out.println("mc.a: " + mc.a); System.out.println("mc.b: " + mc.b); } } |
Output:
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In default constructor. In single parameter constructor. In double parameter constructor. mc.a: 10 mc.b: 20 |
Calling a constructor from the another constructor of same class is known as Constructor chaining.
