Output Statement in Java

 

Output Statement in Java

In Java, list of the various print functions that we use to output statements:

1. System.out.println();
2. System.out.print();
3. System.out.printf();

print(): This method in Java is used to display a text on the console. This text is passed as the parameter to this method in the form of String. This method prints the text on the console and the cursor remains at the end of the text at the console. The next printing takes place from just here.

Syntax

System.out.print(parameter);

 Example

// Java code to illustrate print() import java.io.*;   class Demo_print {           public static void main(String[] args)           {                      // using print()                    // all are printed in the                    // same line                    System.out.print("Good");                    System.out.print("Good ");                    System.out.print("Good ");           } }

Output Good Good Good

 

println(): This method in Java is also used to display a text on the console. It prints the text on the console and the cursor moves to the start of the next line at the console. The next printing takes place from the next line.

Syntax

System.out.println(parameter);

 Example

// Java code to illustrate println()   import java.io.*;   class Demo_print {           public static void main(String[] args)           {                      // using println()                    // all are printed in the                    // different line                    System.out.println("Good ");                    System.out.println("Good ");                    System.out.println("Good ");           } }

Output   Good Good Good

 

printf(): This is the easiest of all methods as this is similar to printf in C. Note that System.out.print() and System.out.println() take a single argument, but printf() may take multiple arguments. This is used to format the output in Java.

Syntax

System.out.printf( “format-string” [, arg1, arg2, … ] );

 Example

// A Java program to demonstrate working of printf() in Java   class JavaFormatter1 {           public static void main(String args[])           {                    int x = 100;                    System.out.printf(                              "Printing simple"                                       + " integer: x = %d\n",                              x);                      // this will print it upto                    // 2 decimal places                    System.out.printf(                              "Formatted with"                                       + " precision: PI = %.2f\n",                              Math.PI);                      float n = 5.2f;                      // automatically appends zero                    // to the rightmost part of decimal                    System.out.printf(                              "Formatted to "                                       + "specific width: n = %.4f\n",                              n);                      n = 2324435.3f;                      // here number is formatted from                    // right margin and occupies a                    // width of 20 characters                    System.out.printf(                              "Formatted to "                                       + "right margin: n = %20.4f\n",                              n);           } }

Output   Printing simple integer: x = 100 Formatted with precision: PI = 3.14 Formatted to specific width: n = 5.2000 Formatted to right margin: n =         2324435.2500