Frequent question: How do you compare primitive data types in Java?

How does == work with primitive data?

When the variables are compared, the “==” operator is comparing their object reference in memory. When only one of the arguments of the “==” operator is an object and the other is a primitive type, unboxing will occur. This program will output a and b are equal. … This will output a and b are equal.

How do you compare primitive long values in Java?

Compare two primitive long variables in java

  1. the == operator tells you if the two operands are the same object (instance).
  2. the . equals() method on Long tells you if they are equal in value.

How do you compare primitive integers?

To compare integer values in Java, we can use either the equals() method or == (equals operator). Both are used to compare two values, but the == operator checks reference equality of two integer objects, whereas the equal() method checks the integer values only (primitive and non-primitive).

Is equal method in Java?

Java String equals() Method

The equals() method compares two strings, and returns true if the strings are equal, and false if not. Tip: Use the compareTo() method to compare two strings lexicographically.

IT IS INTERESTING:  Does SharePoint license include SQL?

Can we compare two strings using == in Java?

In String, the == operator is used to comparing the reference of the given strings, depending on if they are referring to the same objects. When you compare two strings using == operator, it will return true if the string variables are pointing toward the same java object. Otherwise, it will return false .

Which primitive type can hold the largest value?

Summary of Data Types

Primitive Type Size Maximum Value
byte 8-bit +127
short 16-bit +215-1 (32,767)
int 32-bit +231-1 (2,147,483,647)
long 64-bit +263-1 (9,223,372,036,854,775,807)

Why string is not a primitive data type?

String is non-primitive because only class can have methods. Primitive can not. And String need many functions to be called upon while processing like substring, indexof, equals, touppercase. It would not have been possible without making it class.

Can we compare primitive data types using ==?

Never compare objects with ==

It only works if it’s the same object. Different objects with the same value are not equal.

How do you compare two long values in Java?

equals() is a built-in function in java that compares this object to the specified object. The result is true if and only if the argument is not null and is a Long object that contains the same long value as this object. It returns false if both the objects are not same.

How do you parse long to int?

Let’s see the simple code to convert Long to int in java.

  1. public class LongToIntExample2{
  2. public static void main(String args[]){
  3. Long l= new Long(10);
  4. int i=l.intValue();
  5. System.out.println(i);
  6. }}
IT IS INTERESTING:  Your question: How do you check atleast one checkbox is checked or not in jQuery?

Can wrapper classes compare in Java?

Comparing Integers

When comparing two integer values, Java provides a couple options. In Java, all primitive data types (such as int, float, double, and byte) have individual wrapper classes. … It is used to compare two integer values. It will return a -1, 0, or 1, depending on the result of the comparison.