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Merge pull requestneetcode-gh#2287 from n0nchalant/patch-2

java/0013-roman-to-integer

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	`1`	`+classSolution {`
	`2`	`+publicintromanToInt(Strings) {`
	`3`	`+HashMap<Character,Integer>map =newHashMap();`
	`4`	`+map.put('I',1);`
	`5`	`+map.put('V' ,5);`
	`6`	`+map.put('X' ,10);`
	`7`	`+map.put('L' ,50);`
	`8`	`+map.put('C' ,100);`
	`9`	`+map.put('D' ,500);`
	`10`	`+map.put('M' ,1000);`
	`11`	`+`
	`12`	`+intresult =0;`
	`13`	`+for(inti=0;i <s.length();i++){`
	`14`	`+if (i >0 &&map.get(s.charAt(i)) >map.get(s.charAt(i-1))) {`
	`15`	`+result +=map.get(s.charAt(i)) -2*map.get(s.charAt(i-1));`
	`16`	`+ }else {`
	`17`	`+result +=map.get(s.charAt(i));`
	`18`	`+ }`
	`19`	`+ }`
	`20`	`+returnresult;`
	`21`	`+}`
	`22`	`+}`

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