Difference between Java and Kotlin in Android with Examples

Kotlin was introduced in Android development considering multiple enhancements in Kotlin w.r.t Java. For example:

• Less no. of Lines and easier development with the same functionality.

Java:
TextView displayText = (TextView) findViewById(R.id.textView);
displayText.setText("Hello World");

Kotlin:
textView.setText("Hello World")

• Compile-time handling of infamous null pointer exception.

var value: String = "abc"

// compilation error
value = null

• Data class instead of POJO.

data class User(val name: String, val age: Int)

The following are some of the important differences between Java and Kotlin.