java(程序结果).docx

1.int a=2;System.out.println(a+);System.out.println(a);System.out.println(+a);结果：2342.int x=4;System.out.println(value is+(x4)?99.99:9);结果： value x=125;System.out.println(x%2);System.out.println(x/10);System.out.println(x%3=0);结果：112False4.System.out.print(7%-2+t);System.out.print(7%2+t);System.out.print(-7%2+t);System.out.print(-7%-2+t);System.out.print(7.2%2.8=+7.2%2.8);结果：11-1-17.2%2.8=1.60000000000000055.int a=6,b=7,c=8;double d=3.14;String x=hello;System.out.println(a+b+x+c+d);结果：13hello83.146.char a=6;int d =a-0;System.out.println(a+1);System.out.println(d+1);结果：5577.String c=red;switch (c) default:System.out.println(white);break;case red:System.out.println(red);break;case blue:System.out.println(blue);break;结果：red8.outer:for (int i = 1; i 3; i+) for (int j = 1; j 4; j+) if (i=1 & j=2)continue outer;System.out.println(i=+i+ j=+j);结果：i=1 j=1i=2 j=1i=2 j=2i=2 j=39.int j=0;do if(j=5) continue;System.out.print(j+ );j+; while (j1)if(a2)d=4;elsed=2;else if(bc)d=3;else d=1;System.out.println(d=+d);结果：d=112.int m=8,n=5;while (m2) if(mn)m=m-n;elsen=n-m;System.out.println(m);结果：113.int x=1,y=1,z=1;if(x-=1 & y+=1 | z+=1)System.out.println(x=+x+,y=+y+,z=+z);结果：x=0,y=2,z=114.int x =23659;String m=resule=;while (x0) m=m+x%10;x=x/10;System.out.println(m);结果：resule=9563215.int i=0,j=5;top:for(;)i+;for(;)if(i-j) break top;System.out.println(i=+i+,j=+j);结果：i=1,j=016.int a = new int6;for (int m = 0; m a.length; m+) am=m+1;System.out.print(am);if(m%3=0)System.out.println();结果：12345617.public static void main(String args) int s=f(3)+f(2);System.out.println(s=+s);public static int f(int k)int m=1,r=1;while (m=k) r=r*m;m+;return r;结果：s=818.public static void main(String args) int a=1,2,3,4;for (int i = 0; i 0)return n+fun(k,n-1);elsereturn 0;结果：621.class Parentprotected static int count=0;public Parent()count+;public class Child extends Parentpublic Child()count+;public static void main(String args) Child x =new Child();System.out.println(count=+count);结果：count=222.public class A protected void test(float x)System.out.println(test(float):+x);protected void test(Object obj)System.out.println(test(Object):+obj);protected void test(String str)System.out.println(test(String):+str);public static void main(String args) A a1 = new A();a1.test(hello);a1.test(5);结果：test(String):hellotest(float):5.023.class exSuperpublic void func(String p,String s)System.out.println(p);public class example extends exSuperpublic void func(String p,String s)System.out.println(p+:+s);public static void main(String args) exSuper e1= new exSuper();e1.func(hello1, hi1);exSuper e2 = new example();e2.func(hello2, hi2);结果： hello1hello2:hi224.class Treeclass Pine extends Treeclass Oak extends Treepublic class Forest public static void main(String args) Tree tree = new Pine();if(tree instanceof Pine)System.out.println(Pine);if(tree instanceof Tree)System.out.println(Tree);if(tree instanceof Oak)System.out.println(Oak);elseSystem.out.println(Oops);结果：PineTreeOops25.public class isEqual int x;public isEqual(int x1)x=x1;public static void main(String args) isEqual m1= new isEqual(4);isEqual m2= new isEqual(4);isEqual m3=m2;m3.x=6;System.out.println(m1=m2 is +(m1=m2);System.out.println(m2=m3 is +(m2=m3);System.out.println(m1.x=m2.x is +(m1.x=m2.x);System.out.println(m1.equals(m2)=+m1.equals(m2);结果：m1=m2 is falsem2=m3 is truem1.x=m2.x is falsem1.equals(m2)=false25.abstract class Avoid m1()System.out.println(m1();abstract void m2();interface Bvoid n();public class test extends A implements Bvoid m2()System.out.println(call m2();public void n()System.out.println(call n();public static void main(String args) test obj = new test();obj.m1();obj.m2();obj.n();结果：m1()call m2()call n()26.public final class testclass Innervoid test()if(test.this.flag)sample();elseSystem.out.println(inner test);private boolean flag=false;public void sample()System.out.println(sample);public test()flag=true;(new Inner().test();public static void main(String args) new test();结果：erface Afloat v=2.0f;void init();class Bint v=3;void output()System.out.println(v);public class test extends B implements Apublic void init()System.out.println(do init);public static void main(String args) test x = new test();x.init();x.output();x.printV();void printV()System.out.println(super.v+A.v);结果：do init35.027.public class Ex2 public static void main(String args) String str=null;try if(str.length()=0)System.out.print(The);System.out.print( Cow); catch (Exception e) System.out.print( and);System.exit(0);finallySystem.out.print( Chicken);System.out.println( show);结果： and28.public class A static int some()try System.out.println(try);return 1;finally System.out.println(finally);public static void main(String args) System.out.println(some();结果：tryfinally129.public class Unchecked public static void main(String args)