Download Java Programming Examples: Print, If, Loops, Unary Ops, I/O and more Exercises English Literature in PDF only on Docsity!
Let's create the hello java program:
class Simple{ public static void main(String args[]){ System.out.println("Hello Java"); } }
Let's create a program that could add two numbers:
class Simple{ public static void main(String[] args){ int a=10; int b=10; int c=a+b; System.out.println(c); }}
Let's create a program about Java Unary Operator: ++ and –
class OperatorExample{ public static void main(String args[]){ int x=10; System.out.println(x++); System.out.println(++x); System.out.println(x--); System.out.println(--x); }}
Java Program: IfStatement
public class IfExample { public static void main(String[] args) { int age=20; if(age>18){ System.out.print("Age is greater than 18"); } } }
Java IFElseStatement
public class IfElseExample { public static void main(String[] args) { int number=13; if(number%2==0){ System.out.println("even number"); }else{ System.out.println("odd number"); } } }
Java Program: For Loop
public static void main(String[] args) { int i=1; do{ System.out.println(i); i++; }while(i<=10); } }
Java Program Using Java Break Statement for Loop
public class BreakExample { public static void main(String[] args) { for(int i=1;i<=10;i++){ if(i==5){ break; } System.out.println(i); } } }
Java Program that would read input in a java program Sample 1: import java.util.Scanner;
import java.io.*; // Access System.out public class NumericInput
{
public static void main(String[] args)
{
// Declarations Scanner in = new Scanner(System.in); int integer; long longInteger; float realNumber; double doubleReal; String string1; String string2;
// Prompts System.out.println("Enter an integer, a long integer, "
- "a floating-point "); System.out.println("number, another floating-point number, "
- "and a string."); System.out.println("Separate each with a blank or return.");
// Read in values integer = in.nextInt(); longInteger = in.nextLong(); realNumber = in.nextFloat(); doubleReal = in.nextDouble(); string1 = in.nextLine(); System.out.println("Now enter another value."); string2 = in.next();
System.out.println("Here is what you entered: ");
System.out.println(integer + " " + longInteger + " " + realNumber +
" " + doubleReal + " " + string1 + " and " + string2);
