Java-Loops
- Loops are very useful mechanism to execute a code several times in java programming.
- Java has 3 looping mechanisms. They are
- For loop
- While loop
- do....while loop
For Loop
For loop is very good choice if you know how many times a task wants to execute.
Basic syntax:
for(initialization;expression;update)
{
//statements
}
Example:
public class ForLoop
{
public static void main(String args [])
{
for(int x=1;x<10;x++)
{
System.out.println(x);
}
}
}
You can get the answer like this....
Basic syntax:
while(expression)
{
//statements
}
Example:
public class WhileLoop
{
public static void main(String args [])
{
int x=1;
while(x<10)
{
System.out.println(x);
x++;
}
}
}
You can get the answer like this..
Do....While loop
Do while loop is similar to the while loop. The different thing is in while loop before executing the code check the condition. But in do while loop after executing the code check the condition.
Basic Syntax:
do
{
//statements
}
while(expression);
Example:
public class DoWhileLoop
{
public static void main(String args [])
{
int x=1;
do
{
System.out.println(x);
x++;
}
while(x<10);
}
}
You can get the answer like this..
{
//statements
}
Example:
public class WhileLoop
{
public static void main(String args [])
{
int x=1;
while(x<10)
{
System.out.println(x);
x++;
}
}
}
You can get the answer like this..
Do....While loop
Do while loop is similar to the while loop. The different thing is in while loop before executing the code check the condition. But in do while loop after executing the code check the condition.
Basic Syntax:
do
{
//statements
}
while(expression);
Example:
public class DoWhileLoop
{
public static void main(String args [])
{
int x=1;
do
{
System.out.println(x);
x++;
}
while(x<10);
}
}
You can get the answer like this..
Comments
Post a Comment