Following is the declaration for java.lang.Boolean.equals() methodpublic boolean equals(Object obj) Overridesequals in class ObjectParametersobj − the object to compare withReturn ValueThis method returns true if the Boolean objects represent the same value, false otherwise....
*/classPeople{privateStringname;publicPeople(Stringname){this.name=name;}@Overridepublicbooleanequals(Objectobj){// TODO Auto-generated method stub//如果是自己if(this==obj){returntrue;}//如果是空if(obj==null){returnfalse;}//比较两个People的名字是否相同if(obj!=null&&objinstanceofPeople){if((...
java D:\JavaPrograms>java EqualsDemo true true true In above piece of code class Person has an overridden equals() method, which took the following step-by-step approach: If the reference to this object is the same as the reference to the argument object, return true. This test saves ...
1 public class Person { 2 private String name; 3 4 public Person(String name) { 5 this.name = name; 6 } 7 8 public String getName() { 9 return name; 10 } 11 12 public void setName(String name) { 13 this.name = name; 14 } 15 16 @Override 17 public boolean equals(Object o...
Object the reference object with which to compare. Returns Boolean trueif this object is the same as the obj argument;falseotherwise. Attributes RegisterAttribute Remarks Indicates whether some other object is "equal to" this one. Theequalsmethod implements an equivalence relation on non-null object...
These methods can be found in the Object class and hence available to all java classes.Using these two methods, an object can be stored or retrieved from a Hashtable, HashMap or HashSet. hashcode() equals() hashcode() and equals() method hashcode(): You might know if you put entry ...
This method returnstrueif this object is the same as the obj argument;falseotherwise. Exception NA Checking Compatible Objects for Equality Example The following example shows the usage of java.lang.Object.equals() method. In this example, we've created an Integer Object with value of 50. Now...
Java program to demonstrate example of Object Class equals() method importjava.lang.Object;publicclassObjectClass{publicstaticvoidmain(String[]args){// Create a new object of Integer typeIntegerin1=newInteger(10);// Create a new object of Float typeFloatfl=newFloat(10.f);// Create another ...
Theequals()method compares two strings, and returns true if the strings are equal, and false if not. Tip:Use thecompareTo()method to compare two strings lexicographically. Syntax publicbooleanequals(ObjectanotherObject) Parameter Values ParameterDescription ...
equals是方法,==是比较运算符; 区别2:基本数据类型比较时,只能用==,比较的是值是否相等; 区别3:引用数据类型比较时,==比较的是引用地址是否相等,而equals对于引用数据类型的比较,分两种情况: 情况1:引用数据类型没有对equals进行重写,则比较的是引用地址,因为所有引用数据类型均继承自Object,而Object的equals方法....