In this tutorial we are gonna see how to left pad a string with spaces and zeros: 1) Left pad with spaces class LeftPaddingExample1 {… [Read More]
java – Right padding a String with Spaces and Zeros
In this tutorial we are gonna see how to right pad a string with spaces and zeros: 1) Right pad with spaces public class PadRightExample1… [Read More]
How to get the size of TreeMap example – Java
In this tutorial we willl learn how to get the size of a TreeMap. We are using size() method of TreeMap class to get the… [Read More]
How to get the Sub Map from TreeMap example – Java
In this example we are gonna see how to get a sub map from TreeMap. We are using subMap() method of TreeMap class. Please refer… [Read More]
How to iterate TreeMap in reverse order in Java
By default TreeMap elements are sorted in ascending order of keys. We can iterate the TreeMap in reverse order to display the elements in descending… [Read More]
How to sort a TreeMap by value in java
A TreeMap is always sorted based on its keys, however if you want to sort it based on its values then you can build a… [Read More]
Java program for binary to decimal conversion
There are two following ways to convert binary number to decimal number: 1) Using Integer.parseInt() method of Integer class.2) Do conversion by writing your own… [Read More]
Java Program for Decimal to Hexadecimal Conversion
There are two following ways to convert a decimal number to hexadecimal number: 1) Using toHexString() method of Integer class.2) Do conversion by writing your… [Read More]
Java Program for Decimal to Octal Conversion
In this guide, we will discuss the following two ways to convert decimal to octal in Java. Using predefined method toOctalString(int num) of Integer class… [Read More]
TreeMap Iterator example – Java
In this example we are iterating a TreeMap using Iterator and Map.Entry. import java.util.TreeMap; import java.util.Set; import java.util.Map; import java.util.Iterator; public class TreeMapExample { public… [Read More]
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