Basic Programs Of Java

8. Program

//Find the O/P ? 
class H
{
 public static void main(String args[])
 {
  int i, j, k = 10, m;
  i = 20;
  j = i + 30;
  m = j + k + 20;
  System.out.println(i);
  System.out.println(j);
  System.out.println(k);
  System.out.println(m);  
 }
}

---

9. Program

//Find the O/P ? 
class I
{
 public static void main(String args[])
 {
  int x = 10;
  int x = 20;   // Same Variable Can't Declear
  System.out.println(x);
  
 }
}

---

10. Program

//Find the O/P ? 
class J
{
 public static void main(String args[])
 {
  int x = 10;
  x = 20;   //Reinitialization
  System.out.print(x);
 }
}

---

11. Program

//Find the O/P ? 
class K
{
 public static void main(String args[])
 {
  int i, j, m;
  double n;
  i = j = m = 10;
  n = 30.95;
  System.out.println(i);
  System.out.println(j);
  System.out.println(m);
  System.out.println(n);
 }
}

---

12. Program

//Find the O/P ? 
class L
{
 public static void main(String args[])
 {
  int i, j;
  double m, n = 10.9, p;
  i = 10;
  j = 40;
  m = 1.2;
  p = 3.6;
  System.out.println(i);
  System.out.println(j);
  System.out.println(m);
  System.out.println(n);
 }
}

---

13. Program

//Find the O/P ? 
class M
{
 public static void main(String args[])
 {
 
  System.out.println(i); // Compile Time Error
  int i = 10;
 }
}

---

14. Program

//Find the O/P ? 
class N
{
 public static void main(String args[])
 {
  int i;   //local variable must be initialized Before Usage
  System.out.println(i);
 }
}

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