Mention one statement each to achieve:
1. Bi-directional flow of control
2. Multiple branching of control
(with reference to java programming)
Answers
use if ,else flow control...
Example:
if(condition) {
//statement
}
else{
//statement
}
2. Multiple branching of control...
using: if, else if flow control or switch.
Example:
if(condition) {
//statement
}
else if(condition){
// statement
}
.
.
.
.
.
.
else{
// statement
}
____________________________________
Example:
switch(){
.
.
.
.
}
We can achieve the given goals/decisions using Conditional Statements in Java Programming.
We have four decision statements in java, namely:
1. if statement (Single directional flow statement)
2. if... else statement (Bi-directional flow statement)
3. else if statement (Multi-directional flow/branching statement)
4. Switch statement (Multi-directional flow using cases)
1. Bi-directional flow of control:
if...else statement:
if (condition)
{
// code will be executed if the 'if condition' becomes true.
}
else
{
// code will be executed if the 'if condition' becomes false.
}
Example (Rough Skeleton of if...else statement in java)
int age=12;
if (age>=18) //12>=18 -> Condition becomes false. diverts to else block
{
System.out.println("Major");
}
else
{
System.out.println("Minor");
//if condition fails, the code in else block executes.
}
//Results 'Minor' as output.
2. Multiple branching of control:
else if statement:
if (condition1)
{
// condition1==True -> executes if block
}
else if (condition2)
{
// condition1=False and condition2=True -> executes else if block
}
else
{
// condition1=False and condition2=False -> executes else block
}
Example (Rough Skeleton of else if statement in java)
int marks=62;
if (marks<=50) //62<=50 -> false -> goes to else if
{
System.out.println("Better luck next time!");
}
else if (marks>=51 && marks<=80) //62>=51 && 62<=80 -> true
{ //executes this block.
System.out.println("Good!");
}
else
{
System.out.println("Excellent!");
}
//Prints 'Good!' is output.
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