Install Eclipse JBoss plugin without visiting market

 1. Download Eclipse Jboss plugin here. Choose "Update site (including sources) bundle of all JBoss Core Tools".

https://tools.jboss.org/downloads/jbosstools/2023-09/4.29.1.Final.html#zips

2. Open eclipse > Help > Install new software... > Click "add" on top right corner > Archive... > Choose the zip file in step 1

Using Node Version Manager without admin right

- Install nvm (e.g. C:\Apps\nvm)

- Create settings.txt (e.g. C:\Apps\nvm\settings.txt) with below content

root: C:\Apps\nvm

path: C:\Apps\nvm\nodejs

arch: 64

proxy: [your company's proxy, username / password of proxy may be required]

originalpath: .

originalversion: 

node_mirror: 

npm_mirror: 

Each time when "nvm use" is called, "C:\Apps\nvm\nodejs" will be recreated.

[Angular] Material Date Picker Custom Date Format

1. Create a class that extends NativeDateAdapter

import { NativeDateAdapter, DateAdapter, MAT_DATE_FORMATS, MAT_DATE_LOCALE } from '@angular/material/core';

import { formatDate } from '@angular/common';

export const MY_FORMATS = {

parse: {

dateInput: 'yyyy-MM-dd', // date format used by the text field

},

display: {

dateInput: 'yyyy-MM-dd', // date format used by the text field

monthYearLabel: 'MMM-YYYY', // the date on the top left of the date picker

dateA11yLabel: 'LL',

monthYearA11yLabel: 'MM-yyyy',

}

};

export class MyDateAdaper extends NativeDateAdapter {

override format(date: Date, displayFormat: Object): string {

return formatDate(date, displayFormat+'', this.locale);

}

}

2. In your component class, specify we are using MyDateAdapter in @Component.

import { Component, OnInit, ViewChild } from '@angular/core';

import { FormBuilder, FormControl } from '@angular/forms';

import { Case } from '../case/case';

import { CaseAct } from '../case/caseAct';

import { CaseAsmt } from '../case/caseAsmt';

import { StatOrdSummary } from '../case/statOrdSummary';

import { SelectItem } from '../case/selectItem';

import { Observable, Subject, interval, of, mergeMap, concatMap, switchMap } from 'rxjs';

import { HeroService } from '../service/hero.service';

import { FactoryService } from '../service/factory.service';

import { debounceTime, distinctUntilChanged, filter, map, scan, reduce, tap } from 'rxjs/operators';

import { MatTabGroup } from '@angular/material/tabs';

import { MatSnackBar } from '@angular/material/snack-bar';

import { MatCheckboxModule } from '@angular/material/checkbox';

import { MatRadioModule } from '@angular/material/radio';

import { MatDialog, MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';

import { CommonDialogComponent } from '../dialog/common-dialog/common-dialog.component';

import { DateAdapter, MAT_DATE_FORMATS, MAT_DATE_LOCALE } from '@angular/material/core';

import { MyDateAdaper, MY_FORMATS } from '../common/myDateFormat';

import { TRANSLOCO_SCOPE } from '@ngneat/transloco';

@Component({

selector: 'app-case',

templateUrl: './case.component.html',

styleUrls: ['./case.component.css'],

providers: [

{

provide: DateAdapter,

useClass: MyDateAdaper,

},

{

provide: MAT_DATE_FORMATS, 

useValue: MY_FORMATS

},

],

})

export class CaseComponent implements OnInit {

.....

}

3. In html template, nothing to config for the date format.

<mat-form-field appearance="fill" class="form-field ">

<mat-label>Iss Dt</mat-label>

<input matInput [matDatepicker]="picker" [(ngModel)]="a.ordrIsuDt" />

<mat-hint>YYYY-MM-DD</mat-hint>

<mat-datepicker-toggle matIconSuffix [for]="picker"></mat-datepicker-toggle>

<mat-datepicker #picker></mat-datepicker>

</mat-form-field>

CSS values and units

https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Values_and_units 

Unit	Name	Equivalent to
cm	Centimeters	1cm = 37.8px = 25.2/64in
mm	Millimeters	1mm = 1/10th of 1cm
Q	Quarter-millimeters	1Q = 1/40th of 1cm
in	Inches	1in = 2.54cm = 96px
pc	Picas	1pc = 1/6th of 1in
pt	Points	1pt = 1/72nd of 1in
px	Pixels	1px = 1/96th of 1in

[Java] Partition equal subset sum

 class Solution {

    public boolean canPartition(int[] nums)

    {

        int n = nums.length;

        int sum = 0;

        for(int i=0; i<n; i++)

        {

            sum+=nums[i];

        }

       

        if(sum%2 !=0 ) return false;

        sum = sum/2;

        boolean[][] possible = new boolean[n+1][sum+1];

        for(int i=0; i<=n; i++) possible[i][0] = true;

        for(int i=1; i<=n; i++)

        {

            for(int j=1; j<=sum; j++)

            {

                if(nums[i-1] > j)

                {

                    possible[i][j] = possible[i-1][j];

                }

                else

                {

                    possible[i][j] = possible[i-1][j-nums[i-1]] || possible[i-1][j];

                }

            }

        }

        return possible[n][sum];

    }

};

[Java] Next Permutation

 class Solution {

    public boolean nextPermutation(int[] nums) {

        int ind1=-1;

        int ind2=-1;

        // step 1 find breaking point 

        for(int i=nums.length-2;i>=0;i--){

            if(nums[i]<nums[i+1]){

                ind1=i;

                break;

            }

        }

        // if there is no breaking  point 

        if(ind1==-1){

            reverse(nums,0);

return false;

        }

        

        

// step 2 find next greater element and swap with ind2

for(int i=nums.length-1;i>=0;i--){

if(nums[i]>nums[ind1]){

ind2=i;

break;

}

}

swap(nums,ind1,ind2);

// step 3 reverse the rest right half

reverse(nums,ind1+1);

        return true;

    }

    void swap(int[] nums,int i,int j){

        int temp=nums[i];

        nums[i]=nums[j];

        nums[j]=temp;

    }

    void reverse(int[] nums,int start){

        int i=start;

        int j=nums.length-1;

        while(i<j){

            swap(nums,i,j);

            i++;

            j--;

        }

    }

}

[Java] Rotate matrix clockwise in place

 class Solution {

    public void rotate(int[][] matrix) {

        int a=0,b=matrix.length-1,tmp;

        while(a<=b)

        {

            for(int k=0;k<=b-a-1;k++)

            {

                tmp = matrix[a][a+k];

                matrix[a][a+k] = matrix[b-k][a];

                matrix[b-k][a] = matrix[b][b-k];

                matrix[b][b-k] = matrix[a+k][b];

                matrix[a+k][b] = tmp;

            }

            a++;

            b--;

        }

    }

}