Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://www.tutorialspoint.com/java/nested_if_statements_in_java.htm below:

Java - nested if statement

It is always legal to nest if-else statements which means you can use one if or else if statement inside another if or else if statement.

The syntax for a nested if...else is as follows −

if(Boolean_expression 1) {
   // Executes when the Boolean expression 1 is true
   if(Boolean_expression 2) {
      // Executes when the Boolean expression 2 is true
   }
}

You can nest else if...else in the similar way as we have nested if statement.

The concept nested if statement refers to testing the condition(s) inside a condition. The working of a nested if statement is quite easy, the inner condition is checked only when the outer condition is true.

For example, there are two conditions to be evaluated condition_1 and condition_2. We need to check condition_2 only if condition_1 is true. In this case, we will write condition_2 (with its block) as the block/body of the condition_1. Thus, condition_1 will be considered as an outer condition and condition_2 will be considered as an inner condition.

Consider the below syntax -

// Outer condition
if (condition_1) {
  // Inner condition
  if (condition_2) {
  ...
  }
}

In this example, we're showing use of nested if statement within an if statement. We've initialized two variables x and y to 30 and 20 respectively. Then we're checking value of x with 30 using if statement. As if statement is true, in its body we're again checking value of y using a nested if statement.

public class Test {

   public static void main(String args[]) {
      int x = 30;
      int y = 10;

      if( x == 30 ) {
         if( y == 10 ) {
            System.out.print("X = 30 and Y = 10");
         }
      }
   }
}

X = 30 and Y = 10

In this example, we're showing use of nested if statement within an else statement. We've initialized two variables x and y to 30 and 20 respectively. Then we're checking value of x less than 30 using if statement. As if statement is false, control jumps to else statement where we're again checking value of y using a nested if statement.

public class Test {

   public static void main(String args[]) {
      int x = 30;
      int y = 10;

      if( x < 30 ) {
         System.out.print("X < 30");
      } else {
         if( y > 9 ) {
            System.out.print("X > 30 and Y > 9");
         }  
      }
   }
}

X > 30 and Y > 9

In this example, we're showing use of nested if statement within an else statement. We've initialized two variables x and y to 30.0 and 20.0 respectively. Then we're checking value of x less than 30.0 using if statement. As if statement is false, control jumps to else statement where we're again checking value of y using a nested if statement.

public class Test {

   public static void main(String args[]) {
      double x = 30.0;
      double y = 10.0;

      if( x < 30.0 ) {
         System.out.print("X < 30.0");
      } else {
         if( y > 9.0 ) {
            System.out.print("X > 30.0 and Y > 9.0");
         }  
      }
   }
}

X > 30.0 and Y > 9.0

java_decision_making

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4