Trending questions in Java

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How can I read a large text file line by line using Java?

// Open the file FileInputStream file = new ...READ MORE

May 2, 2018 in Java by Parth
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277 views
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What is the difference between jdk and jre?

JRE: It stands for Java Runtime Environment. ...READ MORE

Apr 20, 2018 in Java by Akrati
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Reflection: Explanation and Uses

Reflection API is used to modify or examine the behavior ...READ MORE

May 2, 2018 in Java by sharth
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143 views
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How to pad string in Java?

Padding to 10 characters: String.format("%10s", "foo").replace(' ', '*'); String.format("%-10s", ...READ MORE

Apr 30, 2018 in Java by Rishabh
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166 views
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What do we understand from string pool in java?

This prints true (even though we don't use equals method: correct ...READ MORE

Apr 30, 2018 in Java by Daisy
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What are optional parameters in Java

Using three dots: public void move(Object... x) { ...READ MORE

Apr 27, 2018 in Java by developer_1
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Sorted array is being processed faster than unsorted array. Why is it so ?

What is Branch Prediction? Consider a railroad junction: Image by ...READ MORE

Apr 18, 2018 in Java by Rishabh
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547 views
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difference between wait() and sleep() in java

We can find a big difference between ...READ MORE

Apr 25, 2018 in Java by developer_1
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241 views
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How can I Sort an ArrayList in Java

You can sort the ArrayList in 2 ...READ MORE

Apr 23, 2018 in Java by sharth
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265 views
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what are the ways in which a list can be iterated

  There are 5 ways to iterate over ...READ MORE

Apr 23, 2018 in Java by sharth
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260 views
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How do I create a Java string from the contents of a file?

If you're looking for an alternative that ...READ MORE

Apr 19, 2018 in Java by Rishabh
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406 views
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Sort a Map<Key, Value> by values

This might help solve your problem...!!!! public class ...READ MORE

Apr 18, 2018 in Java by Rishabh
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239 views
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How to print java array in the simplest way?

String[] arr = new String[] {"John", "Mary", ...READ MORE

Apr 17, 2018 in Java by sophia
• 1,400 points
282 views
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I am learning looping statements. Can you tell me how 'for-each' works in Java?

While programming we often write code that ...READ MORE

Apr 17, 2018 in Java by Rishabh
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228 views
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Ho do I Iterate through a HashMap which contains duplicate values

What is the fastest and the best ...READ MORE

Apr 16, 2018 in Java by Daisy
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How do I fix a NullPointerException?

When you declare a reference variable (i.e. ...READ MORE

Apr 13, 2018 in Java by Parth
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303 views
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How to take input from users?

Scanner Class is used to take input ...READ MORE

Apr 17, 2018 in Java by Akrati
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135 views
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How to divide a string in two parts

String s="yourstring"; boolean flag = true; for(int i=0;i<s.length();i++) { ...READ MORE

Apr 13, 2018 in Java by Rishabh
• 3,640 points
274 views