Java Statements tutorial for Beginners

Here we will learn about statements in Java.

Types of Java Statement

  • Control Statement
  • Assignment Statement

 In this section we will discuss about control statements. Click here for additional information on assignment statement.


 

Control Statements

  • Conditional execution
  • Looping
  • Flow Control Statement

 

Types of Conditional Execution

  • If Statement
  • If – Else statement
  • If- Else-if statement
  • Switch Statement

If Statement

The if statement in Java encloses a portion of code which is executed only if the applied condition is true. If statements only accept boolean expression as condition.

Note*:  Unlike other languages Java does not accept numbers as conditional operators. It only considers boolean expressions as conditions which returns TRUE or FALSE.

Syntax of If Statement

	if (true)
			System.out.println("Hello! This will always get printed");

 

if (Boolean Expression) {
    Code block to get executed
}

Example code of If Statement


If Else Statement

The if Else statement consists of one if condition and one else statement. It encloses a portion of code which is executed only if the if condition is true, if it is false then the else part of the code will be executed. If else statements take only boolean expression  as valid conditions.

Note*:  Unlike other languages, Java does not accept numbers as conditional operators. It only considers boolean expressions as conditions which returns TRUE or FALSE.
E.g  if(1==1) is accepted as it is a boolean expression and will return true. if(x=1) statement is not allowed in Java.

Syntax of If  Else Statement

		if (1==2)
			System.out.println("Hello! This will not get printed");
else
			System.out.println("Hello! This will get printed");

 

if (Boolean Expression) {
    Code block to get executed
}
else{
code block to get executed when above condition is false
}

Example code of If Else Statement


If Else If Statement

The if else if statement consists of multiple if conditions and an else statement. If the if condition is true then the enclosed code will be executed. If the if condition is false then it will check the next if condition. If the next if condition is true then the enclosed code will be executed otherwise the else part of the code will be executed. If Else If statements takes only boolean expressions as  valid condition .

Note*:  Unlike other languages Java doesn’t accept numbers as conditional Operators. Only boolean expression which returns TRUE or FALSE.
E.g If(x=1) is not allowed while if(1==1) is accepted as it is boolean expression and will return true.

Syntax of If  Else If Statement

		if (1==2)
			System.out.println("Hello! This will not get printed");
else if(1==1)
			System.out.println("Hello! This will get printed");
else
		System.out.println("This will get executed when Above conditio is FALSE");

 

if (Boolean Expression) {
    Code block to get executed
}
else{
code block to get executed when above condition is false
}

Example Code of If Else If Statement in java


 

Types of Looping Statement

  • For Loop
  • While Loop
  • Do  – While Loop

 

Types of Flow Control Statement

  • Return Statement
  • Continue Statement
  • Break Statement
Series Navigation<< Operators in java programming languageDifferent ways to create an object in Java >>

15 Comments Java Statements tutorial for Beginners

    1. Ramneet Singh Dua

      break: is used to stop execution of a loop
      continue: is used when we want the code execution irrespective of the condition
      return: is used to explicitly return from a method

      Reply
  1. surya

    Thanks for developing this site from which I can able to learn the concepts easily.

    Could you please provide the explanation for flow control statement and assignment statement with some examples for better understanding?

    Reply

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