Java If-else Statement

Java If-else Statement is used to test condition.It boolean true is returned,the code in between the if statement is executed. Java If-el...

Java If-else Statement is used to test condition.It boolean true is returned,the code in between the if statement is executed.

Java If-else Statement  Syntax.

[if(condition)

        {
        
        //code to execute if boolean true is returned

}]

Types of if statements

• if statement
• if-else statement
• nested if statement
• if-else-ladder

Java if Statement example

[

public class JavaIfStatement {
    public static void main(String args[])
    {
        int age=30;
        if(age>=18)
        {
            System.out.println("Your Illegiable to be a voter");
        }
    }

}

]

Java if-else statement

Java if-else statement executes code if boolean true is returned.If false is returned, else code is executed.

Syntax

[

if(condition to test)

        {
        //execute this code                }
else        {
        //execute this code

}

]

Example:
[

public class JavaIfStatement {
    public static void main(String args[])
    {
        int age=13;
        if(age>=18)
        {
            System.out.println("Your Illegiable to be a voter");
        }
        else        {
            System.out.println("You cannot vote..too young");
        }
    }

}

]

Java if-else-if ladder Statement

In the if-else-if ladder, one condition is executed from multiple statements.

Syntax:

[

if(condition 1)
        {
        //code to execute
        }
else if(condition 2)
        {
        //code to execute        }
else if(condition 3)
        {
        //code to execute        }
.
.
.
 else        {

        //code to execute        }

]

Example:

[

public class JavaIfStatement {
    public static void main(String args[])
    {
        int score=30;
        if(score<50)
        {
            System.out.println("Your grade is D");
        }
        else if(score>50&&score<=60)
        {
            System.out.println("Your grade is C");
        }
        else if(score>60&&score<=70)
        {
            System.out.println("Your grade is B");
        }
        else if(score>70&&score<=80)
        {
            System.out.println("Your grade is A-");
        }
        else        {

            System.out.println("Your grade is A");

        }
    }

}

]