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EqualsDemo.javaAPI DocExample829Thu May 13 18:31:10 BST 2004None

EqualsDemo

public class EqualsDemo extends Object

Fields Summary
private int
int1
private SomeClass
obj1
Constructors Summary
public EqualsDemo(int i, SomeClass o)
Constructor

		int1 = i;
		if (o == null) {
			throw new IllegalArgumentException("Object may not be null");
		}
		obj1 = o;
public EqualsDemo()
Default Constructor

		this(0, new SomeClass());
Methods Summary
public booleanequals(java.lang.Object o)
Demonstration "equals" method

		if (o == this)		// optimization
			return true;

		// Castable to this class? (false if == null)
		if (!(o instanceof EqualsDemo))
			return false;

		EqualsDemo other = (EqualsDemo)o;	// OK, cast to this class

		// compare field-by-field
		if (int1 != other.int1)			// compare primitives directly
			return false;
		if (!obj1.equals(other.obj1))	// compare objects using their equals
			return false;
		return true;