System.out.println(10 + 20 + “Java”);

class A{
int x=5;
}
class Main{
public static void main(String[] args){
A obj1=new A();
A obj2=obj1;
obj2.x=10;
System.out.println(obj1.x);
}
}

System.out.println(5 + 2 * 3);

System.out.println(10 / 3);

int x = 5;
System.out.println(x++ + ++x);

class A{
void show(){ System.out.print(“A”); }
}
class Main{
public static void main(String[] args){
A obj=new A();
obj.show();
}
}

String s=“Java”;
System.out.println(s.length());

class A{
void show(){ System.out.print(“A”); }
}
class B extends A{
void show(){ System.out.print(“B”); }
}
class Main{
public static void main(String[] args){
A obj=new B();
obj.show();
}
}

class A{
A(){ System.out.print(“Constructor”); }
}
class Main{
public static void main(String[] args){
A obj=new A();
}
}

int x = 10;
System.out.println(x– + –x);

int x=2;
switch(x){
case 1: System.out.print(“A”); break;
case 2: System.out.print(“B”); break;
case 3: System.out.print(“C”);
}

for(int i=1;i<=3;i++){
if(i==2) break;
System.out.print(i);
}

int x=2;
switch(x){
case 1: System.out.print(“A”);
case 2: System.out.print(“B”);
case 3: System.out.print(“C”);
}

int arr[]=new int[]{1,2,3};
System.out.println(arr[1]);

String s=“Java”;
System.out.println(s.equalsIgnoreCase(“java”));

int x = 3;
System.out.println(++x * 2);

int x = 4;
System.out.println(x++ * 2);

System.out.println(“Java” + “10″ + “20″);

int i=1;
while(i<=3){
System.out.print(i);
i++;
}

int a = 10;
System.out.println(a += 5 * 2);