Java If-else Statement

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The Java if statement is used to test the condition. It checks boolean condition: true or false. There are various types of if statement in java.

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

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Java if Statement

The Java if statement tests the condition. It executes the if block if condition is true.

    if(condition){  
    //code to be executed  
    }  

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Cases:

class Test
{
public static void main(String[] args)
{
int i=10;
int j;
if(i==10)
{
j=20;
}
System.out.println(j);
}
}

Status: Compilation Error, Variable j might not have been innitialized.