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The getInteger() is a static method of the Integer class that is used to get the Integer instance of the system property with the specified name. It has three overloaded methods – public static Integer getInteger(String nm, Integer val) public static Integer getInteger(String nm, int val) public static Integer getInteger(String nm) Let’s have a look […]

The divideUnsigned() is a static method of the Integer class that divides two integers and returns its quotient. This post will look at the divideUnsigned() method in detail. Method declaration – public static int divideUnsigned(int dividend, int divisor) What does it do? This function was first introduced in Java 1.8, and it will divide the

The decode() method is a static method of the Integer class that converts a string into an Integer instance. This post will look at the decode() method in detail and the difference between the decode() method and the valueOf() method of the Integer class. Method declaration – public static Integer decode(String nm) What does it

compare() method is used to compare two values numerically, whereas compareUnsigned() compares two values by treating them as unsigned. This post will look in detail at the Integer class’s compare() and compareUnsigned() methods. public static int compare(int x, int y) public static int compareUnsigned(int x, int y) Let’s look at both of them one by

The bitCount() is a static method of the Integer class that counts the number of 1 bit in the two’s complement binary representation of the integer. It was introduced in Java 1.5, and this post will discuss the bitCount() method in detail. Method declaration – public static int bitCount(int i) What does it do? It

We have wrapper classes in Java that provide a mechanism to wrap primitive values in an object so that primitives can be used for the operations reserved only for objects. One such wrapper class is the Integer wrapper class which wraps an int primitive to facilitate object operations. The Integer class is present in java.lang

valueOf() is a static method of the Integer wrapper class in Java that returns an Integer object corresponding to the argument(s) passed in it. In this post, we will look at the valueOf() method in detail. The valueOf() method has three overloaded methods – public static Integer valueOf(int i) public static Integer valueOf(String s) public

This post will discuss the parseInt() function of the Integer Wrapper class in detail. The parseInt() is a static method of the Integer class and can be called directly using the class name( Integer.parseInt() ) and has three overloaded methods which can be used as per the requirements. public static int parseInt(String s) public static

In this post, we will discuss the wrapper classes of Java in detail. Wrapper classes provide a mechanism to “wrap” primitive values in an object so that primitives can be used for the operations reserved for the objects, like being used in a map or Collections. The wrapper classes can be used in the process

The trimToSize() method is used to trim the capacity of an ArrayList to its current size. In this post, we are going to discuss the trimToSize() method in detail. Method declaration – public void trimToSize() What does it do? It is used to trim the capacity of an ArrayList to its current size. So, after