JavaNested If

Nested If

You can also place anif statement inside anotherif. This is called anested if statement.

A nestedif lets you check for a condition only if another condition is alreadytrue.

if (condition1) {  // code to run if condition1 is true  if (condition2) {    // code to run if both condition1 and condition2 are true  }}

Example

In this example, we first check ifx is greater than 10. If it is, we then check ify is greater than 20:

int x = 15;int y = 25;if (x > 10) {  System.out.println("x is greater than 10");    // Nested if   if (y > 20) {    System.out.println("y is also greater than 20");  }}

Real-Life Example

Nestedif statements are useful when you need to test multiple conditions that depend on each other. For example, checking if a person is old enough to vote, and if they are a citizen:

int age = 20;boolean isCitizen = true;if (age >= 18) {  System.out.println("Old enough to vote.");    if (isCitizen) {    System.out.println("And you are a citizen, so you can vote!");  } else {    System.out.println("But you must be a citizen to vote.");  }} else {  System.out.println("Not old enough to vote.");}

Notes

• You can nest as manyif statements as you want, but avoid making the code too deep - it can become hard to read.
• Nestedif is often used together withelse andelse if for more complex decision making.