Friday, 26 June 2015

Constructor


public class Lab586 {
public static void main(String[] args) {
Student stu1=new Student();
stu1.show();
Student stu2=new Student();
stu2.show();
}
}



public class Lab587 {
public static void main(String[] args) {
Student stu=new Student();
stu.sid=99;
stu.sname="Srinivas";
stu.show();    
}
}



public class Lab588 {
public static void main(String[] args) {
Student stu=new Student();
stu.sid=88;
stu.sname="Dande";
stu.show();
}
}



public class Lab589 {
public static void main(String[] args) {
Student stu=new Student();
stu.sid=77;
stu.sname="Srinivas";
stu.show();
}
}



public class Lab590 {
public static void main(String[] args) {
Student stu1=new Student(88,"Srinivas");
stu1.show();
Student stu2=new Student(99,"Dande");
stu2.show();
}
}



public class Lab591 {
public static void main(String[] args) {
Student stu1=new Student();
stu1.show();
Student stu2=new Student(55,"Dande");
stu2.show();
}
}



public class Lab592 {
public static void main(String[] args) {
Student stu1=new Student(99,"Sri","sri@jlc",9999);
stu1.show();
Student stu2=new Student(88,"Vas","vas@jlc");
stu2.show();
Student stu3=new Student(77,"SD");
stu3.show();
Student stu4=new Student();
stu4.show();
}
}



public class Lab597 {
public static void main(String[] args) {
Student stu=new Student(77,"SD");
stu.show();
}
}

public class Student {
int sid;
String sname;
String email;
long phone;
public Student(int id, String sn, String em, long ph) {
System.out.println("4Args Constructor");
sid = id;
sname = sn;
email = em;
phone = ph;
}
public Student(int id, String sn, String em) {
System.out.println("3Args Constructor");
sid = id;
sname = sn;
email = em;
}
public Student(int id, String sn) {
System.out.println("Student 2args constructor");
sid = id;
sname = sn;
}

public Student() {
System.out.println("Default Constructor");
}

void show(){
System.out.println(sid+"\t"+sname);
}
}

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Exception


public class Lab1 {
public static void main(String[] args) {
System.out.println("Manin Started");
String data=args[0];
int x=Integer.parseInt(data);
int res=10/x;
System.out.println("Result is : "+res);
System.out.println("Main End");
}

}



public class Lab2 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
String data=args[0];
int x=Integer.parseInt(data);
int res=10/x;
System.out.println("Result : "+res);
}catch(Exception e){
System.out.println("Enter Correct value");
}
System.out.println("Main Completed");
}

}


public class Lab3 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
String data=args[0];
int x=Integer.parseInt(data);
int res=10/x;
System.out.println("Result : "+res);
}catch(ArrayIndexOutOfBoundsException e){
System.out.println("Provide one value as CLA");
}catch(NumberFormatException e){
System.out.println("Provide int value only");
}catch(ArithmeticException e){
System.out.println("Provide non zero int value as CLA");
}
System.out.println("Main Completed");
}

}


public class Lab4 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
String data=args[0];
int x=Integer.parseInt(data);
int res=10/x;
System.out.println("Result : "+res);
}catch(Exception e){
System.out.println("Provide one value as CLA");
}catch(NumberFormatException e){
System.out.println("Provide int value only");
}catch(ArithmeticException e){
System.out.println("Provide non zero int value as CLA");
}
System.out.println("Main Completed");
}

}



public class Lab5 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
String data=args[0];
int x=Integer.parseInt(data);
int res=10/x;
System.out.println("Result : "+res);
}catch(ArrayIndexOutOfBoundsException e){
System.out.println("Provide one value as CLA");
}catch(NumberFormatException e){
System.out.println("Provide int value only");
}catch(ArithmeticException e){
System.out.println("Provide non zero int value as CLA");
}
System.out.println("Main Completed");
}

}



public class Lab6 {
public static void main(String[] args) {
System.out.println("Main Started");
String data=null;
try{
data=args[0];
}catch(ArrayIndexOutOfBoundsException e){
System.out.println("Provide one value as CLA");
}
int x=0;
try{
x=Integer.parseInt(data);
}catch(NumberFormatException e){
System.out.println("Provide int value only");
}try{
int res=10/x;
System.out.println("Result : "+res); }
catch(ArithmeticException e){
System.out.println("Provide non zero int value as CLA");
}catch(Exception e){
System.out.println("Provide correct value");
}
System.out.println("Main Completed");
}

}



public class Lab7 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
String data=args[0];
int x=Integer.parseInt(data);
int res=10/x;
System.out.println("Result : "+res);
}catch(ArrayIndexOutOfBoundsException e){
System.out.println("Provide one value as CLA");
}catch(NumberFormatException e){
System.out.println("Provide int value only");
}catch(ArithmeticException e){
System.out.println("Provide non zero int value as CLA");
}catch(Exception e){
System.out.println("Provide correct value");
}
System.out.println("Main Completed");
}

}



public class Lab8 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
String data=args[0];
int x=Integer.parseInt(data);
int res=10/x;
System.out.println("Result : "+res);
}catch(ArrayIndexOutOfBoundsException  e){
System.out.println("Provide one value as CLA");
}System.out.println("Main Completed");
}

}



public class Lab9 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
int res=10/0;
System.out.println("result : "+res);
}catch(ArithmeticException e){
System.out.println("Invalid Input");
}
System.out.println("Main Completed");
}

}



public class Lab10 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
int res=10/0;
System.out.println("result : "+res);
}catch(ArithmeticException e){
System.out.println("Invalid Input");
}finally{
System.out.println("finally block");
System.out.println("Main Completed");
}
}

}



public class Lab11 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
int res=10/0;
System.out.println("result : "+res);
return;
}catch(Exception e){
System.out.println("Invalid Input");
}
System.out.println("Main Completed");
}

}



public class Lab12 {
public static void main(String[] args) {
System.out.println("Main Started");
try{
int res=10/3;
System.out.println("result : "+res);
return;
}catch(Exception e){
System.out.println("Invalid Input");
}finally{
System.out.println("Finally Block");
}
System.out.println("Main Completed");
}

}



public class Lab13 {
public static void main(String[] args) {
System.out.println("Main Started");
int r=new Hello().show();
System.out.println("Main : "+r);
System.out.println("Main() Completed");
}

}

class Hello{
int show(){
int a=0;
try{
System.out.println("try block begins : "+a );
a=10/4;
System.out.println("try block ends : "+a);
return a;
}catch(ArithmeticException e){
a=20;
System.out.println("Catch block : "+a);
return a;
}finally{
a=30;
System.out.println("finally block : "+a);
}
}
}


public class Lab14 {
public static void main(String[] args) {
System.out.println("Main Started");
int r=new Hello().show();
System.out.println("Main : "+r);
System.out.println("Main() Completed");
}

}

class Hello{
int show(){
int a=0;
try{
System.out.println("try block begins : "+a );
a=10/0;
System.out.println("try block ends : "+a);
return a;
}catch(ArithmeticException e){
a=20;
System.out.println("Catch block : "+a);
return a;
}finally{
a=30;
System.out.println("finally block : "+a);
}
}
}



public class Lab15 {
public static void main(String[] args) {
System.out.println("Main Started");
// int r=new Hello().show();
// System.out.println("Main : "+r);
System.out.println("Main() Completed");
}

}

class Hello{
int show(){
int a=0;
try{
System.out.println("try block begins : "+a );
a=10/0;
System.out.println("try block ends : "+a);
return a;
}catch(ArithmeticException e){
a=20;
System.out.println("Catch block : "+a);
return a;
}finally{
a=30;
System.out.println("finally block : "+a);
}
}
}


public class Lab16 {
public static void main(String[] args) {
System.out.println("Main Started");
int r=new Hello().show();
System.out.println("Main : "+r);
System.out.println("Main() Completed");
}

}

class Hello{
int show(){
int a=0;
try{
System.out.println("try block begins : "+a );
a=10/0;
System.out.println("try block ends : "+a);
return a;
}catch(ArithmeticException e){
a=20;
System.out.println("Catch block : "+a);
return a;
}finally{
a=30;
System.out.println("finally block : "+a);
return a;

}
}
}


public class Lab17 {
public static void main(String[] args) {
System.out.println("Main() Started");
new Hello().show("3");
System.out.println("Main() Completed");
}
}


class Hello{
void show(String str){
System.out.println("show() called");
try{
System.out.println("try block begins : ");
int a=Integer.parseInt(str);
int b=10/a;
System.out.println("try block ends : "+b);
System.exit(0);
}catch(ArithmeticException e){
System.out.println("Catch block : ");
}finally{
System.out.println("finally block : ");

}
}
}




public class Lab18 {
public static void main(String[] args) {
System.out.println("Main() Started");
new Hello().show("0");
System.out.println("Main() Completed");
}
}

class Hello{
void show(String str){
System.out.println("show() called");
try{
System.out.println("try block begins : ");
int a=Integer.parseInt(str);
int b=10/a;
System.out.println("try block ends : "+b);
}catch(ArithmeticException e){
System.out.println("Catch block : ");
System.exit(0);
}finally{
System.out.println("finally block : ");

}
}
}



public class Lab19 {
public static void main(String[] args) {
System.out.println("Main Started");
try {
new Hello1().show();
} catch (Exception e) {
System.out.println("\n catch block");
System.out.println("EX : "+e);
System.out.println("Message :"+e.getMessage());
System.out.println("Cause :"+e.getCause());
System.out.println();
e.printStackTrace();
}
System.out.println("Main Completed");
}

}

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Monday, 22 June 2015

while Statement

public class Lab1 {
public static void main(String[] args) {
int i=1;
while(i<=10){
System.out.println(i);
i++;
}
}

}


public class Lab2 {
public static void main(String[] args) {
int i=0;
while(i++<=10){
System.out.println(i);
}
}

}


public class Lab3 {
public static void main(String[] args) {
while(true){
System.out.println("JLC");
}
}

}


public class Lab4 {
public static void main(String[] args) {
while(true){
System.out.println("JLC");
}
//System.out.println("JLC");
}

}


public class Lab5 {
public static void main(String[] args) {
boolean b1=true;
while(b1){
System.out.println("JLC");
}
System.out.println("After");
}

}


public class Lab6 {
public static void main(String[] args) {
int n=5;
int i=1;
while(i<=10){
System.out.println(n*i++);
}
}

}


public class Lab7 {
public static void main(String[] args) {
int n=5;
int i=1;
while(i<=10){
System.out.println(n*i);
i++;
}
}

}


public class Lab8 {
public static void main(String[] args) {
int n=5;
int i=1;
while(i++<=10){
System.out.println(n*i);
}
}

}


public class LAb9 {
public static void main(String[] args) {
int n=5;
int i=1;
while(i++<=10)
System.out.println(n*i);
}

}


public class Lab10 {
public static void main(String[] args) {
int n=5;
int i=1;
while(i++<10);{
System.out.println(n*i);
}
}

}


public class Lab11 {
public static void main(String[] args) {
int i=0;
while(i<10){
int a=10;
System.out.println(a++ +"\t"+i++);
}
}

}


public class Lab12 {
public static void main(String[] args) {
char ch='A';
int rows=0;
while(rows<5){
int cols=0;
while(cols<=rows){
System.out.print(ch+" ");
cols++;
}
System.out.println();
rows++;
}
}

}


public class Lab13 {
public static void main(String[] args) {
char ch='A';
int rows=0;
while(rows<5){
int cols=0;
while(cols<=rows){
System.out.print(ch+" ");
cols++;
ch++;
}
System.out.println();
rows++;
}
}

}

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switch Statement

public class Lab1 {
public static void main(String[] args) {
int a=3;
if(a==0)
System.out.println("Sunday");
else if(a==1)
System.out.println("Monday");
else if(a==3)
System.out.println("Tuesday");
else if(a==4)
System.out.println("Wednessday");
else if(a==5)
System.out.println("Thursday");
else if(a==6)
System.out.println("Saturday");
else
System.out.println("Wrong Input");

}

}


public class Lab2{
public static void main(String[] args) {
int a=3;
switch(a){
case 0:
System.out.println("Sunday");
break;
case 1:
System.out.println("Monday");
break;
case 2:
System.out.println("Tuesday");
break;
case 3:
System.out.println("Wednessday");
break;
case 4:
System.out.println("Thursday");
break;
case 5:
System.out.println("Friday");
break;
case 6:
System.out.println("Saturday");
break;
}
}

}


public class Lab3 {
public static void main(String[] args) {
int a=30;
switch(a){
case 10:
System.out.println("Ten");
case 30:
System.out.println("Thirty");
}
}

}


public class Lab4 {
public static void main(String[] args) {
char ch='A';
switch (ch){
case 'a':
System.out.println("Value is a");
case 'A':
System.out.println("Value is A");
}
}

}


public class Lab5 {
public static void main(String[] args) {
long a=30;
// switch(a){
//}
}

}



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If-else Statement

public class Lab1 {
public static void main(String[] args) {
if(true)
System.out.println("IF BLOCK");
System.out.println("Hello Guys");
}

}


public class Lab2 {
public static void main(String[] args) {
if(false)
System.out.println("If Block");
System.out.println("Hello Guys");
}

}


public class Lab3 {
public static void main(String[] args) {
if(false){
System.out.println("If Block");
System.out.println("Hello Guys");
}
}

}


public class Lab4 {
public static void main(String[] args) {
int a=99;
if(a==99)
System.out.println("Value is 99");
System.out.println("Hello Guys");
}

}


public class Lab5 {
public static void main(String[] args) {
int a=88;
if(a==99)
System.out.println("Value is 99");
System.out.println("Hello Guys");
}

}


public class Lab6 {
public static void main(String[] args) {
int a=99;
if(a==99){
int b=12;
System.out.println(a);
System.out.println(b);
}
System.out.println(a);
}

}


public class Lab7 {
public static void main(String[] args) {
int a=99;
if(a==99){
int b=12;
System.out.println(b);
System.out.println(a);
}
System.out.println(a);
//System.out.println(b);
}

}


public class Lab8 {
public static void main(String[] args) {
int a=99;
if(a==99)
// int x=12;
System.out.println("Hello Guys");
}

}


public class Lab9 {
public static void main(String[] args) {
int a=99;
if(a==99){
int x=12;
}
System.out.println("Hello Guys");
}

}


public class Lab10 {
public static void main(String[] args) {
int a;
if(true){
a=99;
}
System.out.println(a);
}

}


public class Lab11 {
public static void main(String[] args) {
int a;
if(false){
a=99;
}
// System.out.println(a);
}

}


public class Lab12 {
public static void main(String[] args) {
int a;
int x=99;
if(x==99){
a=88;
}
//System.out.println(a);
}

}


public class Lab13 {
public static void main(String[] args) {
int a;
int x=99;
if(x==99){
a=88;
}else{
a=77;
}
System.out.println(a);
}

}


public class Lab14 {
public static void main(String[] args) {
int a;
int x=99;
if(x==99){
a=88;
}
//System.out.println(a);
}

}


public class Lab15 {
public static void main(String[] args) {
int a=42;
if(a%2==0)
System.out.println("Value is even");
else
System.out.println("Value is odd");

}

}


public class Lab16 {
public static void main(String[] args) {
int a=43;
if(a%2==0)
System.out.println("Value is even");
else
System.out.println("Value is odd");

}

}


public class Lab17 {
public static void main(String[] args) {
int a=0;
if(a++==0)
System.out.println("Zero");
else if(a++==1)
System.out.println("One");
else 
System.out.println("Not Matching");
System.out.println(a);
}

}


public class Lab18 {
public static void main(String[] args) {
int a=1;
if(++a==1)
System.out.println("One");
else if(++a==2)
System.out.println("Two");
else 
System.out.println("Not Matching");
System.out.println(a);
}

}


public class Lab19 {
public static void main(String[] args) {
int a=10;
if(a!=10){
//else{
System.out.println("Else Block");
//}
}
}

}


public class Lab20 {
public static void main(String[] args) {
int a=10;
if(a!=10){
}
else{
System.out.println("Else Block");
}
}

}


public class Lab21 {
public static void main(String[] args) {
int a=10;
if(a!=10);
else{
System.out.println("Else Block");
}
}

}


public class Lab22 {
public static void main(String[] args) {
int a=10;
if(a!=10)
// else{
System.out.println("Else Block");
//}
}

}


public class Lab23 {
public static void main(String[] args) {
int a=10;
int b=20;
if(a>b)
System.out.println("Max value between "+a+" and "+b+" is "+a);
else
System.out.println("Max value between "+a+" and "+b+" is "+b);
}
}


public class Lab24 {
public static void main(String[] args) {
int a=10;
int b=20;
if(a<b)
System.out.println("Min value between "+a+" and "+b+" is "+a);
else
System.out.println("Min value between "+a+" and "+b+" is "+b);
}
}

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for Statement

public class Lab1 {
public static void main(String[] args) {
System.out.println(1);
System.out.println(2);
System.out.println(3);
System.out.println(4);
System.out.println(5);
System.out.println(6);
System.out.println(7);
System.out.println(8);
System.out.println(9);
System.out.println(10);

}

}


public class Lab2 {
public static void main(String[] args) {
for(int i=0;i<=10;i++){
System.out.println(i);
}
}
}


public class Lab3 {
public static void main(String[] args) {
for(int i=1;i<=100;i++){
if(i%2==0)
System.out.println(i);
}
}

}


public class Lab4 {
public static void main(String[] args) {
for(int i=1;i<=100;i++){
if(i%2==1)
System.out.println(i);
}
}

}


public class Lab5 {
public static void main(String[] args) {
for(int i=1;i<=100;i++){
if(i%7==0)
System.out.println(i);
}
}

}


public class Lab6 {
public static void main(String[] args) {
int n=5;
for(int i=1;i<=10;i++)
System.out.println(n+"*"+i+"="+n*i);
}

}


public class Lab7 {
public static void main(String[] args) {
for(int i=1;i<=10;i++){
int a=99;
a++;
System.out.println(i+"\t"+a);
}
}

}


public class Lab8 {
public static void main(String[] args) {
for(int i=1;i<=10;i++)
System.out.println(i);
// System.out.println(i);
}

}


public class Lab9 {
public static void main(String[] args) {
int i=1;
for(;i<=10;i++)
System.out.println(i);
System.out.println("After: "+i);
}

}


public class Lab10 {
public static void main(String[] args) {
for(int i=1;i<=10;i++){
int a=99;
System.out.println(a);
}
//System.out.println(a);
}

}


public class Lab11 {
public static void main(String[] args) {
int a=0;
for(int i=1;a<=10;i++){
System.out.println(a);
a++;
}
System.out.println("After: "+a);
}

}


public class Lab12 {
public static void main(String[] args) {
// int i=0;
for(int i=1;i<=10;i++){
System.out.println(i);
}
}

}


public class Lab13 {
public static void main(String[] args) {
int i=1;
for(;i<=10;){
System.out.println(i);
i++;
}
}

}


public class Lab14 {
public static void main(String[] args) {
for(;;)
System.out.println("JLC");
}

}


public class Lab15 {
public static void main(String[] args) {
// for(int i=1,char ch='A';i<=10;i++){
// System.out.println(i);
// }
}

}


public class Lab16 {
public static void main(String[] args) {
for(int i=1,a=99;i<=10;i++){
System.out.println(i+"\t"+a);
a++;
}
}

}


public class Lab17 {
public static void main(String[] args) {
for(int i=1,a=99;i<=10;i++,a++){
System.out.println(i+"\t"+a);
}
}

}


public class Lab18 {
public static void main(String[] args) {
int a;
char ch;
float f;
String str;
for(a=5,ch='A',f=123456,str="";a>=0;a--,ch++,f/=10,str+=ch){
System.out.println(a+"\t"+ch+"\t"+f+"\t"+str);
}
}

}


public class Lab19 {
public static void main(String[] args) {
int i=1;
for(System.out.println("Start"),System.out.println("Begin");i<=5;i++,System.out.println("Updatinng"),System.out.println("Updating"))
System.out.println(i);
}

}


public class Lab20 {
public static void main(String[] args) {
// for(int i=0,System.out.println("Begin");i<=5;i++,System.out.println("Updaing")){
// System.out.println(i);
//}
}

}


public class Lab21 {
public static void main(String[] args) {
for(int i=0;i<=10;i++){}
System.out.println("OK");
}

}


public class Lab22 {
public static void main(String[] args) {
for(int i=0;i<=10;i++);
System.out.println("OK");
}

}


public class Lab23 {
public static void main(String[] args) {
for(int i=0;i<=10;i++);
//System.out.println(i);
}

}


public class Lab24 {
public static void main(String[] args) {
int i=0;
for(;i<=10;i++);
System.out.println(i);
}

}


public class Lab25 {
public static void main(String[] args) {
for(int i=0;i<=10;System.out.println(i),i++);
}

}


public class Lab26 {
public static void main(String[] args) {
//for()
}

}


public class Lab27 {
public static void main(String[] args) {
for(;;)
System.out.println("JLC");
}

}


public class Lab28 {
public static void main(String[] args) {
for(;;)
System.out.println("JLc");
//System.out.println("After");
}

}


public class Lab29 {
public static void main(String[] args) {
boolean b1=true;
for(;b1;)
System.out.println("JLC");
System.out.println("After");
}

}


public class Lab30 {
public static void main(String[] args) {
final boolean b1=true;
for(;b1;)
System.out.println("JLC");
//System.out.println("After");
}

}


public class Lab31 {
public static void main(String[] args) {
boolean b1=false;
for(;b1;)
System.out.println("JLC");
System.out.println("After");
}

}


public class Lab32 {
public static void main(String[] args) {
final boolean b1=false;
//for(;b1;)
// System.out.println("JLC");
//System.out.println("After");
}

}


public class Lab33 {
public static void main(String[] args) {
byte b=127;
b++;
System.out.println(b);
for(byte by=10;by>0;by++){
System.out.println(by);
}
}

}


public class Lab34 {
public static void main(String[] args) {
int by=300000000;
for(;by>200;by++){
System.out.println(by);
}
System.out.println("After Loop  "+by);
}

}


public class Lab35 {
public static void main(String[] args) {
char ch='A';
for(int r=0;r<5;r++){
for(int cols=0;cols<=r;cols++){
System.out.print(ch+" ");
}
System.out.println();
}
}

}


public class Lab36 {
public static void main(String[] args) {
char ch='A';
for(int rows=0;rows<5;rows++){
for(int cols=0;cols<=rows;cols++){
System.out.print(ch+" ");
}
System.out.println();
ch++;
}
}

}


public class Lab37 {
public static void main(String[] args) {
char ch='A';
for(int rows=0;rows<5;rows++){
for(int cols=0;cols<=rows;cols++){
System.out.print(ch+" ");
ch++;
}
System.out.println();
}
}

}


public class Lab38 {
public static void main(String[] args) {
int n=5;
char ch='A';
for(int rows=0;rows<5;rows++){
for(int cols=0;cols<=n-rows;cols++){
System.out.print("  ");
}
for(int cols=0;cols<=rows;cols++){
System.out.print(ch+" ");
}
System.out.println();
ch++;
}
}

}

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