Java Integer equals(Object obj) method compares this Integer object to the given object obj. It returns true if both the objects contain same int value else it returns false.
Hierarchy:
java.lang Package
-> Integer Class
-> equals() Method
Syntax of equals() method
public boolean equals(Object obj)
equals() Parameters
obj– The given object to compare with this Integer.
equals() Return Value
- It returns
trueif the objects are same, else it returnsfalse.
Supported java versions: Java 1.2 and onwards.
Example 1
Comparing three Integer objects with each other.
public class JavaExample {
public static void main(String[] args) {
Integer i = new Integer(99);
Integer i2 = new Integer(35);
Integer i3 = new Integer("99");
System.out.print("Integer objects i and i2 are equal: ");
System.out.println(i.equals(i2));
System.out.print("Integer objects i and i2 are equal: ");
System.out.println(i.equals(i3));
}
}
Output:
Example 2
Comparing two Integer values entered by user.
import java.util.Scanner;
public class JavaExample{
public static void main(String[] args){
Integer i, i2;
Scanner scan = new Scanner(System.in);
System.out.print("Enter first integer number: ");
i = scan.nextInt();
System.out.print("Enter second integer number: ");
i2 = scan.nextInt();
if(i.equals(i2)){
System.out.println("Entered numbers are equal");
}else{
System.out.println("Entered numbers are not equal");
}
}
}
Output:
Example 3
Two given strings are decoded using Integer decode() method and compared using equals() method.
public class JavaExample{
public static void main(String[] args){
Integer i, i2;
String s1 = "1002";
String s2 = "1002";
i = Integer.decode(s1);
i2 = Integer.decode(s2);
boolean b = i.equals(i2);
System.out.println("Given Strings contain same int value? "+b);
}
}
Output:
